Blog Feed: School of Freebies

If you are studying fractals, you may want to check out Mandelbulber, a software that renders 3D Mandelbrot fractals. Several of the supported 3d fractals by Mandelbulber are Mandelbulb, Mandelbox, BulbBox, JuliaBulb, Menger Sponge, Quaternion, Trigonometric, Hypercomplex, and Iterated Function Systems … Continue reading → > read more

Some Quarterend Updates

Published on 2012-04-05 10:43:33

Hi everyone. Here are the few announcements and updates 30 minutes before Good Friday. The Mathematics and Multimedia Carnival is now accepting entries for its 22nd edition. The carnival will be hosted by Math is Not a Four Letter Word. … Continue reading → > read more

Why Every Proof that 0.999… = 1 is Wrong

Published on 2012-04-05 06:03:08

The proof made me look at the ceiling (lol). It sounded very convincing for a few seconds. Watch and watch closely til the end. > read more

Counting the Number of Subsets in a Set

Published on 2012-04-05 00:00:00

Problem: How many groups can be formed from 5 persons? First, we represent the persons by small letters a, b, c, d, and e, and we denote a group whose members are c and d as {c, d}. We can … Continue reading → > read more

Blog Carnival Submission Form

Published on 2012-04-04 06:21:57

Due to the frequent down time of BlogCarnival.com, I created my own Carnival Submission Form using Google Docs (inspired by Denise). You may now use the form to submit your entries for the 22nd edition (and future editions) of the … Continue reading → > read more

Newton’s notebooks, now online

Published on 2012-04-02 07:22:01

Cambridge University has recently made some of Isaac Newton’s important notebooks and papers online. The collection includes his Trinity College Notebook, Waste Notebook where he developed most of calculus concepts, Laboratory Notebook, Principia Mathematica, and several of his notes in mathematics, hydrostatics, … Continue reading → > read more

Microsoft Mathematics Tutorial 3 – Equations and Inequalities

Published on 2012-03-31 20:34:40

This is the third tutorial of the Microsoft Mathematics Tutorial Series. The first tutorial is about the Introduction to the User Interface and the second tutorial is about Peforming Basic Numerical Computation. Aside from being a scientific calculator, Microsoft Mathematics … Continue reading → > read more

Latex in Blogger: Another Alternative

Published on 2012-03-29 16:25:18

Last year, I shared about writing latex in Blogger using Watchmath. Sadly, the server has been offline for a very long time. I have also shared about a Free Online Latex generator at Codecogs.com, a good alternative. Codecogs.com has a WYSIWYG environment. … Continue reading → > read more

Quarter in Review – The Most Popular Posts

Published on 2012-03-29 04:36:04

It’s almost the end of the first quarter of 2012. It’s a very busy week, so no time to write this week. Anyway, in case you missed reading some articles, here are the most popular posts for this quarter. The … Continue reading → > read more

A US President’s Proof of the Pythagorean Theorem

Published on 2012-03-25 11:01:39

James Garfield, the 20th president of the United States, came up with an original proof of the Pythagorean Theorem in 1876 when he was still a Congressman. His proof was published in New England Journal of Education. Recall that the … Continue reading → > read more

Week in Review 4 – March 2012

Published on 2012-03-24 11:06:17

Mathematics and Multimedia Microsoft Mathematics Tutorial 2 – Performing Basic Computations Using Latex in Gmail Creating Open-Ended Math Problems Math and Multimedia Carnival 21 Would you have given a different mark? Numberphile: Videos about Number Facts and Trivia More Articles … Continue reading → > read more

Numberphile: Videos About Number Facts and Trivia

Published on 2012-03-24 01:07:21

If you are a lover of numbers, Numberphile might be a good site to visit. Numberphile contains videos about number facts, trivia, and applications. The video below about leap years is one of my favorites. Numberphile is currently produced by … Continue reading → > read more

Would you have given a different mark?

Published on 2012-03-23 08:07:40

The student who obtained 0% in an exam … and how he did it. Would you have given him a different mark??? Q1. In which battle did Napoleon die? * His last battle Q2. Where was the Declaration of Independence … Continue reading → > read more

Math and Multimedia Carnival #21

Published on 2012-03-21 21:22:58

Welcome to the 21st edition of the Math and Multimedia Carnival! I hope you enjoy the selection of mathematics-related topics that have been included in the carnival this month, which have either been submitted via the blog carnival submission site, emailed … Continue reading → > read more

Constructing Open-Ended Math Problems

Published on 2012-03-20 11:01:16

We communicate to students what we value through the questions we ask. If we ask them questions always require them to memorize, then we are implicitly telling them, that mathematics is a science of procedures and formulas. On the other … Continue reading → > read more

Using Latex in Gmail

Published on 2012-03-19 20:35:20

To all math enthusiasts who are using Gmail, you can now use latex code to render mathematical expressions/equations in your email. All you have to do is to install the GmailTeX plugin. Note: The inequality sign in the figure should be … Continue reading → > read more

Microsoft Mathematics Tutorial 2 – Performing Basic Computations

Published on 2012-03-18 11:32:57

This is the second tutorial in the Microsoft Mathematics Tutorial Series. In this tutorial, we learn how to perform basic mathematical computation using Microsoft Mathematics. There are three parts of Microsoft Mathematics used in numeric computations: the calculator pad (green … Continue reading → > read more

Week in Review 3 – March 2012

Published on 2012-03-18 00:44:58

A pleasant Sunday to everyone. Before I continue with the list of posts, please be reminded that tomorrow is the deadline of submissions for the 21st edition of the Mathematics and Multimedia Carnival. Kindly send your post to mathconcepts101@gmail.com. The … Continue reading → > read more

Math Teachers at Play 48

Published on 2012-03-17 05:44:36

The 48th edition of Math Teachers at Play Carnival is now online at Math is Not a Four Letter World. Bon Crowder, the author, has not run out of ideas yet — this time, she created every sentence with exactly 15 … Continue reading → > read more

10 Tips in Studying School Mathematics

Published on 2012-03-12 11:02:02

I came across with this presentation by Fiona Jostsons last Sunday. She discusses some tips in ensuring success in school mathematics. I think these practical tips will help students improve their study habits. 10 tips to ensure success in maths! View … Continue reading → > read more

500 Math EBooks — Downloadable and Free!

Published on 2012-03-11 11:02:37

In addition to the Free Math Ebooks (Free Algebra Ebooks, Free Geometry Ebooks, Free Calculus Ebooks) that I have listed before, Ebooks Directory offer 500 mathematics ebooks. I did not have time to verify if all of these ebooks are … Continue reading → > read more

Week in Review 2 – March 2012

Published on 2012-03-10 10:30:51

It’s a sunny Sunday morning here in Manila, and we are starting to feel the heat of summer. April and May are the summer months here in the Philippines — the time for beach and swimming. However, to those who … Continue reading → > read more

Microsoft Mathematics Tutorial Series

Published on 2012-03-09 18:22:17

Last year, I have shared to you about Microsoft Mathematics, one of the best free and downloadable graphing calculators that can be used for teaching and learning mathematics. Starting next week, I will be posting step-by-step tutorials on how to use … Continue reading → > read more

The Mathematics of Leap Years Explained

Published on 2012-03-07 22:29:06

Year 2012 is a leap year, so I think it’s timely to talk about it. The years 2000, 2004, and 2008 are leap years, so you probably see the pattern that years divisible by 4 are leap years.Now, is this … Continue reading → > read more

Posts by Categories

Published on 2012-03-06 10:02:30

I am decluttering Math and Multimedia, so I will be posting list of posts and site maps for the next few days. This is to address the growing number of posts and to speed up page load. This page will … Continue reading → > read more

GeoGebraWeb: GeoGebra for Tablets and Chrome Books

Published on 2012-03-05 10:10:55

GeoGebra is getting better and better everyday. Recently, it has released GeoGebraWeb Beta, its version for Tablets and Chromebooks. The version also works in Internet Explorer 9 and recent versions of Chrome, Opera and Firefox. The GeoGebraWeb version of an applet can … Continue reading → > read more

Math Teachers at Play 47

Published on 2012-03-04 10:10:13

The 47th edition of the Math Teachers at Play Blog Carnival is now live at Math Hombre. The Math and Multimedia Carnival is also accepting submissions for its 21st edition. If you have a blog about school mathematics, mathematics teaching, integration of … Continue reading → > read more

Week in Review 1 – March 2012

Published on 2012-03-03 10:02:46

Welcome to another edition of Week in Review. Looks like another busy week is ahead. I will be in Baguio for a 3-day training, so I am not sure if I’ll have the time to write there. For a little … Continue reading → > read more

Divisibility by 8

Published on 2012-03-02 20:02:57

This is the seventh post in the Divisibility Rules Series. In this post, we will discuss divisibility by 8. A number is divisible by if the last three digits is divisible by . For example, is divisible by since is … Continue reading → > read more

3D Math Applets Galore at Maths.Net

Published on 2012-03-01 10:01:56

Last year, I have shared about an applet for visualizing isometric views. I found another superb 3d math applets site, Maths.Net, through Great Maths Teaching Ideas. Maths.net includes applets for exploring prisms, nets, platonic solids, and other 3-dimensional objects. It also includes … Continue reading → > read more

GeoGebra 4.0 Tutorials

Published on 2012-02-29 15:09:43

If you have not visited my GeoGebra tutorials recently, I have updated 21 tutorials to GeoGebra 4.0. GeoGebra 4.0 Essentials Series GeoGebra 4.0 Essentials 1 – Locating the Triangle’s Centroid GeoGebra 4.0 Essentials 2 – Constructing a Rectangle GeoGebra 4.0 … Continue reading → > read more

Divisibility by 7 and Its Proof

Published on 2012-02-29 05:58:23

This is the 6th post in the Divisibility Rules Series. In this post, we discuss divisibility by 7. Simple steps are needed to check if a number is divisible by 7. First, multiply the rightmost (unit) digit by 2, and … Continue reading → > read more

New Archive Page, Language Translation, and more

Published on 2012-02-27 21:00:57

Hi everyone. Here are some few updates and announcements: Due to the growing number of posts, I have created an archive page where the complete list of posts are arranged by month. If you want to view the posts by category, … Continue reading → > read more

GeoGebra Tutorial 33 – Lunes and Layers

Published on 2012-02-26 10:10:12

This is the 33rd tutorial of the GeoGebra Intermediate Tutorial Series. If this is your first time to use GeoGebra, I strongly suggest that you read the GeoGebra Essentials Series. In this tutorial, we are going to draw the figure below, the Lunes … Continue reading → > read more

Week in Review – February 2012 Week 4

Published on 2012-02-25 22:41:23

Mathematics and Multimedia Math and Mutlimedia Carnival 20 An Intriguing Number Pattern Problem Create Polyhedra with Antiprism Using Paper Folding to Introduce the Notion of Proof My Other Blogs Tessellations and M.C. Escher at Math Palette Mathematics: The Science of Patterns at Math … Continue reading → > read more

Using Paper Folding to Introduce the Notion of Proof

Published on 2012-02-25 04:46:56

Two years ago, I worked as part-time geometry instructor in a technical school near our university. Most of the students in that school were quite clueless about the notion of proofs, so I tried to find ways to introduce proofs … Continue reading → > read more

Create Polyhedra with Antiprism

Published on 2012-02-21 15:45:09

Last year, I shared about Archimedean, a user-friendly software in exploring solids and polyhedra. If you want to create polyhedra with a little bit of challenge, you may want to try Antiprism. Antiprism is a set of command line programs … Continue reading → > read more

An Intriguing Number Pattern Problem

Published on 2012-02-20 16:21:07

Somebody forwarded this math puzzle several days ago. Believe me it is quite challenging, especially for the math majors. :-) To those who want to exercise their brain muscles, you may want to check this out. 8809=6 7111=0 2172=0 6666=4 … Continue reading → > read more

Math and Multimedia Blog Carnival 20 via GeoGebra Applet Central

Published on 2012-02-19 18:43:50

Welcome to the 20th edition of the Mathematics and Multimedia Blog Carnival. Here are the posts I have collected this month — some from the Blog Carnival site and some from my RSS feed. Before we begin a carnival, let’s have … Continue reading → > read more

Week in Review – February 2012 Week 3

Published on 2012-02-18 10:11:14

Good morning from Baguio City (6 hours from Manila), the summer capital of the Philippines. I am here for a one-day lecture-workshop on “Mathematics as a Way of Thinking” at the AEIRS National Conference. After sleeping for 7 hours, I … Continue reading → > read more

Using Area to Prove the Arithmetic-Geometric Mean Inequality

Published on 2012-02-16 09:06:33

If we have real numbers and , we call the arithmetic mean (AM) and the geometric mean (GM) of and . In this post, we are going to examine the relationship of these two means. To start off, let’s have … Continue reading → > read more

Heart Graph for the Mathematically In Love

Published on 2012-02-12 10:10:21

It’s the first day of our GeoGebra training tomorrow, so let us celebrate Valentine’s day in advance. To all who are mathematically in love, you can celebrate Valentine’s day by doing the following: Copy this: sqrt(cos(x))*cos(300x)+sqrt(abs(x))-0.7)*(4-x*x)^0.01, sqrt(6-x^2), -sqrt(6-x^2) from -4.5 to 4.5 … Continue reading → > read more

Introduction to the Complex Plane

Published on 2012-02-11 18:29:17

Imaginary numbers had no use when it was invented except for intellectual exploration until it was linked to coordinate geometry. The complex number can be plotted as the ordered pair where is the real part and is the imaginary part. Therefore, … Continue reading → > read more

Popularizing Lesson Study

Published on 2012-02-10 09:53:59

The reason that I was away for two days was that I observed the lesson implementation in Nueva Ecija High School (NEHS). It was part of lesson study, one of the components of the 2-year project of our institute and NEHS. … Continue reading → > read more

Carnival 20 deadline of submission

Published on 2012-02-09 04:08:59

The Mathematics and Multimedia Blog Carnival is on its 20th edition and will be posted at GeoGebra Applet Central on February 20, 2012. If you have a math blog and have written an article about school mathematics, mathematics teaching, or … Continue reading → > read more

New Blog: Mathematical Palette

Published on 2012-02-06 08:15:18

I will be away for three days for a teacher training in Nueva Ecija, a province about a hundred kilometers from Metro Manila, so your inbox will be quiet for about three to four days. However, before the long “vacation,” … Continue reading → > read more

Week in Review – February 2012 Week 1

Published on 2012-02-04 10:01:49

Good afternoon to all. We have visitors this morning, so I didn’t have the chance to post the weekly summary early. Anyway, to those who want to catch up with their readings, here are this week’s posts. Mathematics and Multimedia … Continue reading → > read more

Introduction to the Wolfram Education Portal

Published on 2012-02-03 22:13:57

Last year, I posted about Wolfram Alpha and the amazing computational document format developed by Wolfram Research. Recently, Wolfram Research has opened the Wolfram Education Portal, a site dedicated for storing and sharing dynamic teaching and learning materials. The portal contains free to … Continue reading → > read more

Free SPSS and Statistics Ebooks

Published on 2012-02-02 18:04:55

To those who are looking for free books on statistics and SPSS, you may want to check out the following books. They are free from BookBoon but requires email subscription (don’t worry, it’s free) before you can download. SPSS: Practically … Continue reading → > read more

Demystifying Complex Conjugates

Published on 2012-02-02 00:52:00

This is the third post in the Complex Numbers Primer. In the previous post in this series, we have learned that complex numbers can be added and multiplied just like binomials. We did not discuss subtraction since it follows from … Continue reading → > read more

Guest Post: Vedic Mathematics 3 – Multiplication with a series of 9’s

Published on 2011-07-05 11:01:02

Sanjay Guilati (author) has been teaching computer and mathematics in Bhilai , state Chattisgarh in India for 15 years. Currently he is a teacher in a senior secondary school and he is also involved in teacher training. His online work can ̷ > read more

Free Downloadable GeoGebra Tutorials in PDF

Published on 2011-07-04 11:01:04

If you want to learn GeoGebra offline, here are the lists of excellent GeoGebra tutorials in portable document format (PDF). These materials are free and available for download. I. GeoGebra Workshops from GeoGebra Institute of Ohio WS 1: Intro, > read more

Order of Operations: 360 or 354?

Published on 2011-07-03 11:01:12

Last Saturday, I received Facebook message from a student asking help to simplify . He got but his teacher’s answer was . Although the problem above seems simple, a lot of students get confused by it, and in this case, even … Continu > read more

July 2011 Week 1 Post Summary

Published on 2011-07-02 11:02:20

A. Mathematics and Multimedia GeoGebra Sneak Peek 5: The Computer Algebra System How to add a ‘Like us on Facebook’ box on your blog Addition of Coordinates Cleverbot and other talking computers More examples of proof by contradiction Geo > read more

Geometer’s Sketchpad Essentials Series

Published on 2011-07-01 12:01:09

Before I became a GeoGebra user, I had been a user of Geometer’s Sketchpad (GSP version 4.07) for quite some time. Although I am a great fan of GeoGebra, GSP requires more mathematical maturity to use, and in several aspects, … Continue r > read more

More examples of proof by contradiction

Published on 2011-06-30 11:01:39

We have had good discussions on mathematical proofs, so I am planning to create a mathematical proof series that will discuss the basics such as direct proof, indirect proof, and proof by mathematical induction. But before I do that, let … Co > read more

Cleverbot and other talking computers

Published on 2011-06-29 11:01:10

One of the areas of research in artificial intelligence (AI) is to make computers talk like human beings. A theoretically perfect machine should be able to answer questions that you would mistake it for a human. Several such applications are avail > read more

Addition of Coordinates

Published on 2011-06-28 11:01:04

If we have two points, what will happen if we add their coordinates? If point has coordinates and point has coordinates , then . It seems that there is nothing special about these points, but let us look at their … Continue reading → > read more

How to add a ‘Like us on Facebook’ box on your blog

Published on 2011-06-27 11:01:15

One way to promote your blog is to create a Like us on Facebook box such as the one shown in the first figure. Readers who ‘Like’ your blog will get updates every time you post a new article, so … Continue reading → > read more

GeoGebra 4.0 Sneak Peek 5: The Computer Algebra System

Published on 2011-06-26 11:01:43

This is the fifth post of the GeoGebra 4.0 Sneak Peek Series. One of the major enhancements of GeoGebra 4.0 is the integration of Computer Algebra System (CAS). The GeoGebra CAS window can be viewed by clicking the View>CAS from … Continu > read more

June 2011 Week 4 Summary of Posts

Published on 2011-06-25 11:01:41

Here is the list of posts for the fourth week of June 2011. Hope you enjoy reading! I. Mathematics and Multimedia Generating Pythagorean Triples from Square Numbers Are you a good math teacher? The Experimental and Theoretic Probability Series List & > read more

Free Online Latex Generator

Published on 2011-06-24 11:01:38

If you are doing a lot of Latex coding (writing math equations on the web), you may want to check out CodeCogs.com , an excellent WYSIWYG online Latex editor and generator. In CodeCogs, you can write mathematical symbols by simply … Continue re > read more

Irrational Numbers as Decimals

Published on 2011-06-23 18:00:25

Introduction In Rational and Irrational Numbers post, we have discussed that is irrational. Aside from its radical form, using a calculator or a computer, we can approximate its value; for example, . As we can see, irrational numbers can ̷ > read more

Gmail asking for password — be careful!

Published on 2011-06-23 01:20:49

When I opened my email this morning, I received an ‘Identity Verification’ email from ‘Gmail’ (verifiesences@gmail.com), which I think is a hoax. The content of this letter is the following. We have received several complaints > read more

What are RSS Feeds?

Published on 2011-06-22 11:01:09

Introduction When you are reading a book, you use a bookmark to mark a page where you stopped or a page which is important to you. This also happens on the web. You probably have an list of the URLs … Continue reading → > read more

The Experimental and Theoretical Probability Series

Published on 2011-06-21 11:01:59

Last week, we have completed the 5-part Experimental and Theoretical Probability Series. To those who have not read it, below is the list of posts. Experimental and Theoretical Probability Part 1. This post discusses about the sum of the number ̷ > read more

You are invited to a GeoGebra Seminar!

Published on 2011-06-20 23:51:56

Title: Seminar-Workshop on Using Geogebra in Teaching and Learning Mathematics Date: August 6, 13, & 20, 2011 (Saturdays) Time: 8:30 – 12AM, 1:00 – 4:30 PM Venue: Teaching and Learning Laboratory, Vidal Tan Hall, UP NISMED DESCRIPTIO > read more

Are you a good math teacher?

Published on 2011-06-20 11:01:33

Here is a list I found in a research paper about good teaching practices, and I think most of us teachers will agree on these. A good teacher raises questions that give for all students to contribute an answer; makes … Continue reading → > read more

Generating Pythagorean Triples from Square Numbers

Published on 2011-06-19 11:01:25

A figurate number is a number that can be represented by a regular geometrical arrangement of equally spaced points (or circles as shown in the first figure). If the arrangement forms a regular polygon, the number is called a polygonal number. Exam > read more

June 2011 Week 3 Posts Summary

Published on 2011-06-18 11:01:26

Here are the summaries of posts for my three blogs this week. A. Math and Multimedia The GeoGebra 4.0 Sneak Peek Series 5000 free math, physics, and engineering video tutorials and lectures List of Math and Multimedia Carnivals The Seven … Cont > read more

Guest Post: Vedic Mathematics 2 – Squaring Numbers Ending in 5

Published on 2011-06-17 11:01:02

Sanjay Guilati (author) has been teaching computer and mathematics in Bhilai , state Chhattisgarh in India for 15 years. Currently he is a teacher in a seniorsecondary school and he is also involved in teacher training. Sanjay is the writer of & > read more

Exploring the Universe with WorldWide Telescope

Published on 2011-06-16 11:01:43

If you have enjoyed exploring Earth with Google Earth and the stars with Stellarium, another stunning program that you should see is the Worldwide Telescope. WorldWide Telescope (WWT) enables your computer to function as a virtual telescope, bri > read more

GeoGebra 4.0 Sneak Peek 4: Graphing Inequalities

Published on 2011-06-15 11:01:16

The long wait is over. GeoGebra 4.0 can now graph inequalities as shown in Figure 1. You can construct the graph above by typing the following in the Input bar pressing the ENTER key after each inequality. The symbol > read more

The Seven Bridges of Königsberg

Published on 2011-06-14 11:01:04

The city of Königsberg, Prussia (now Kaliningrad, Russia) was set on both sides of the Pregel river. There were two islands on the river and there were seven bridges connecting them and the main land as shown in Figure 1. … Continue readin > read more

List of Math and Multimedia Carnivals

Published on 2011-06-13 11:01:51

The Math and Multimedia Carnival 12 is now live at Mathematics for Teaching. The Carnival is now one year old, and the complete list is shown below. Carnival 1 at Math and Multimedia Carnival 2 at Math and Multimedia Carnival … Continue readi > read more

5000 free math, physics, and engineering video tutorials and lectures

Published on 2011-06-12 11:01:30

Here are the collections of sites with math, physics, engineering, and other sciences video tutorials. Some sites also contains non-science videos as well. If you find a site with more than 50 videos, please inform me so I could include … C > read more

The GeoGebra 4.0 Sneak Peek Series

Published on 2011-06-11 17:11:47

GeoGebra 4.0 will be released by the end of August 2011. In preparation fo the release of the software, I have created a series called GeoGebra 4.0 Sneak Peek Series. The series is an overview of the new feature of … Continue reading → > read more

June 2011 Week 2 Summary

Published on 2011-06-11 11:02:57

Here is the summary of posts for the second week of June 2011. 1.) Mathematics and Multimedia Some thoughts on Teaching Math using Wolfram Alpha in teaching math GeoGebra 4.0 Sneak Peek 3: The New Text Tool How to add … Continue reading → > read more

School of Freebies and other announcements

Published on 2011-06-10 23:19:26

School of Freebies to continue I decided to discontinue School of Freebies, but someone volunteered to help, so it’s back. However, it will continue at its original URL in Blogspot. You can follow School of Freebies at its new RSS feed ̷ > read more

Experimental and Theoretical Probability 5

Published on 2011-06-10 11:01:33

This is the fifth and the final part of the Experimental and Theoretical Probability Series. In this post, we are going to summarize what we have discussed in the previous four posts, and we are going to talk about some … Continue reading > read more

101 Blog Tips 3: Blog Structure and Design Tips

Published on 2011-06-09 11:01:27

This is the third part of the 101 Ways to Promote Your Blog for Free Series. The first part are about the things to do before starting a blog and the second part is things to do during the early … Continue reading → > read more

Blog Carnival 12 Reminder

Published on 2011-06-09 07:07:22

The Math and Multimedia Carnival is on its 12th edition. If you have a blog post about K-12 mathematics or mathematics teaching, I would like to invite you to submit your article to the Math and Multimedia Blog Carnival. The … Continue read > read more

The Top 10 iPod Touch Apps to Use in Math Class

Published on 2011-06-08 11:01:12

Note: This post links to another article. Finding free iPod Touch apps and games to use in Math classes can be a frustrating and time consuming venture. Many have limited functionality or are littered with ads for the paid versions. … Continue > read more

How to add a ‘Follow me on Twitter’ button on your blog

Published on 2011-06-07 11:01:03

Twitter is one of the most popular microblogging site and an excellent place for sharing finds on the internet. That is why it is highly recommended for promoting blogs. In this post, I am going to teach you how to … Continue reading → > read more

GeoGebra Sneak Peek 3: The New Text Tool

Published on 2011-06-06 11:01:58

This is the third posts in the GeoGebra 4.0 Sneak Peek Series. The first two posts discussed about the new tools and the graphical interface. In this post, we are going to discuss the changes made on the GeoGebra Text … Continue reading → > read more

Some thoughts on using Wolfram Alpha in teaching math

Published on 2011-06-05 11:01:27

My main work at our institute is to find ways on how to integrate technologyparticularly free software and Web 2.0 applications in teaching mathematics. Recently, I have been thinking of integrating Wolfram Alpha in teacher trainings, but I can̵ > read more

June 2011 Week 1 Summary

Published on 2011-06-04 11:01:32

Hi everyone. Here is the summary of posts on our first week in a new server. GeoGebra 4.0 Sneak Peek 2: Graphical User Interface Sreenr: An excellent screencasting website Simon’s Factoring Trick 101 Blogging Tips: Things to do during the ̷ > read more

Regular Tessellations: Why only three of them?

Published on 2011-06-03 11:01:56

In Tessellations: The Mathematics of Tiling post, we have shown and discussed that there are only three regular polygons that can tessellate the plane: squares, equilateral triangles, and regular hexagons. From Figure 1, we can see why this is so. T > read more

101 Blog Tips Part 2: Things to do during the early stage of blogging

Published on 2011-06-02 11:01:09

In the previous blog tips post, I have given you 7 tips on what to consider and what to do before starting a blog. By now I assume that you have already decided what topic to write about, and you have chosen … Continue reading → > read more

Announcement: GeoGebra Seminar Batch 2 in August

Published on 2011-06-01 19:21:39

I would like to invite all high school and college mathematics teachers to attend the 3-day GeoGebra Level 1 Seminar-workshop which will be conducted on August 6, 13, 20, 2011 (Saturdays) in UP NISMED, UP Diliman. This training is designed … Co > read more

Carnival 12 Deadline of Submission

Published on 2011-06-01 11:01:14

Time flies fast indeed. The Math and Multimedia Blog Carnival is now one year old! The birth month edition will be hosted by Mathematics for Teaching blog by Erlina Ronda. To submit your articles to the carnival, click here. The deadline of ̷ > read more

Simon’s Favorite Factoring Trick

Published on 2011-05-31 11:01:02

When I was quite younger, one of my hobbies was joining internet forums (fora?) on problem solving. I was not really good at it, so my role was only to ask questions. One of the internet forums I joined was … Continue reading → > read more

Screenr: An excellent screencasting website

Published on 2011-05-30 11:01:14

If you have used Jing, or CamStudio before, you may also want to check out Screenr, an excellent screencasting website. The video below will explain more. Screenr is web-based, both compatible with Windows and Mac, and above all free. > read more

GeoGebra 4.0 Sneak Peek 2: The Graphical User Interface

Published on 2011-05-29 11:01:51

Note: This is the second part of the GeoGebra Sneak Peek Series. The first part is about the GeoGebra 4.0 New Tools. GeoGebra 4.0 has not only improved by adding additional tools and features, there are also “minor” changes which … Continue > read more

May 2011 Week 4 Summary and more …

Published on 2011-05-28 23:56:23

Math and Multimedia is now on a new server — thanks to Hew, WordPress Happiness Engineer, for transferring the blog. I. We have a new email subscription box at the right courtesy of Google’s Feedburner. Your emails have been transferred > read more

Hello world!

Published on 2011-05-27 12:44:31

Welcome to WordPress. This is your first post. Edit or delete it, then start blogging! > read more

Platonic Solids: Why only five of them?

Published on 2011-05-27 11:01:44

Regular polygons are polygons with congruent sides and congruent interior angles. In three dimensions, the equivalent of regular polygons are regular polyhedra — solids whose faces are congruent regular polygons. The most common regular pol > read more

Email Subscribers: Instruction on how to continue your subscription after the transfer

Published on 2011-05-26 08:30:26

Unfortunately, the hosted version of Math and Multimedia will no longer have the same database for storing emails. Starting now, I will transfer all your emails to Feedburner (this is the only solution I can think of right now). This … Continue > read more

Calculus 1 Video Lectures

Published on 2011-05-25 11:01:57

I found a set of good calculus video lectures recently. Students who are taking Calculus and to those who want to review calculus, I think it’s a good material. Enjoy learning! > read more

Reminder: Math and Multimedia is moving

Published on 2011-05-25 08:06:11

Math and Multimedia is moving to a different server on Saturday, May 28 (in the Philippines) and Friday, May 27 (in the US) to serve you better. The blog MIGHT be in maintenance mode for at most 24 hours. However, … Continue reading ͛ > read more

Freebie School to merge with Math and Multimedia

Published on 2011-05-24 20:22:35

I am having a hard time maintaining three blogs, so I am planning to merge this blog with my main blog Math and Multimedia. Most of the software that I share here can fall under the category of multimedia category … Continue reading → > read more

Intersections of Planes with Google Sketchup

Published on 2011-05-24 11:01:24

At the information age, most of the younger generation of teachers cope up, but the not-so-young sometimes prefer the old ways. Nevertheless, great teachers are just great, no matter how they teach. One of my professors (Matrix Algebra), despite bein > read more

Free PDF to Word Converter

Published on 2011-05-23 19:06:44

I accepted an editing job recently, and one of the problems was that the author did not have a copy of his manuscript in word processor format. He had a copy of it in in PDF, so I had to … Continue reading → > read more

Guest Post: Introduction to Vedic Mathematics

Published on 2011-05-23 11:01:35

Sanjay Guilati (author) has been teaching computer and mathematics in Bhilai , state Chhattisgarh in India for 15 years. Currently he is a teacher in a senior secondary school and he is also involved in teacher training. Sanjay is the … Con > read more

Experimental and Theoretical Probability Part 4

Published on 2011-05-22 11:01:47

This is the fourth part of the Experimental and Theoretical Probability Series. Click the following to view the other parts of this series: Part I, Part II, Part III. *** In the previous posts in this series, we have experimented … Continue rea > read more

May 2011 Week 3 Posts Summary

Published on 2011-05-22 01:07:57

Reminder: Math and Multimedia will be moving to a different server on Friday. For more information, click here. A. Mathematics and Multimedia GeoGebra 4.0 Sneak Peek – Part I: New Tools Conrad Wolfram: Teaching kids real math with computers Mat > read more

Empressr: Another Free Presentation Tool

Published on 2011-05-21 08:25:02

Empressr is a free online storytelling tool that allows you to create, manage and share rich media presentations online. Upload your video, images and audio to get started creating slideshows. If you have your own website, blog, or social networkin > read more

Math Teachers at Play 38

Published on 2011-05-20 11:01:55

Welcome to the May 20, 2011 edition of Math Teachers at Play. Before beginning the carnival, let us have some interesting facts about 38. The sum of the squares first three primes The number of years it took the Israelites to … Continue readin > read more

Highlight with Awesome Highlighter

Published on 2011-05-14 04:12:46

Awesome Highligher is a good site for highlighting and note taking on web pages. You just have to type the URL of the page, and then click the highlight button. This will enable you to highlight and add notes on … Continue reading → > read more

Building Your Own Website

Published on 2011-05-09 11:01:15

If you don’t know how to create a website, and you have no knowledge about HTML, then Snappages might be the right place for you. SnapPages will let you create your own website using drag-and-drop buttons. In SnapPages, you can easily R > read more

Facebook on Your Desktop

Published on 2011-05-07 19:14:16

Facebook Desktop is a very small application that enables you to get notifications such as friend requests, new wall posts, pokes from your desktop without having to go the Facebook website. This application, however, requires a .NET Framework 2.0 > read more

Feed your blog to Twitter, Facebook, and more

Published on 2011-05-05 11:01:40

Twitterfeed is an excellent application that can be used automatically import your blog post feeds to your Facebook , Twitter, Statusnet , and Hellotxt accounts in as easy as three steps. First you register to TwitterFeed; second, you enter the > read more

Convert your files to PDF for free

Published on 2011-05-04 11:01:04

If you want to convert your document to portable document format (PDF), you may want to check out PrimoPDF. It’s a free converter which converts almost any file to pdf. PrimoPDF is very easy to use. All you have to … Continue reading &# > read more

More secured with Twitter’s HTTPs option

Published on 2011-05-03 11:01:51

Twitter is just getting better and better everyday. Recently, it has offered an option to always use HTTPS. It is very easy to do this. You just have to go to your account settings, and then check the Always use … Continue reading → > read more

How to automatically post your blog to your Facebook Wall

Published on 2011-05-02 11:01:15

One of the best ways to promote your blog is through social networking sites. In the tutorial below, we will learn how to automatically import your blog posts to your Facebook wall through the Notes application. This way, your friends … Conti > read more

Screencasting with Screenr

Published on 2011-04-30 16:38:04

Screenr is my new favorite web-based screen recorder. Screenr is a new online screencasting website that lets you record desktop and share your screencast on the web. In Screenr, you don’t need to install or download anything; all you have &# > read more

Screencasting with Screenr

Published on 2011-04-30 16:38:04

5 free anti-virus and security software

Published on 2011-04-29 04:39:00

If you are having problems because of computer viruses, spyware, trojans, and other malicious files and does not want to spend, there are free software that you can choose from which is as almost as good as the commercial ones. … Continue rea > read more

5 popular free security software

Published on 2011-04-29 04:39:00

5 popular free security software

Published on 2011-04-29 04:39:00

School of Freebies has moved to a new URL

Published on 2011-04-28 08:54:26

Yes, School of Freebies has a new URL. If you have subscribed by RSS and is reading this, that means that you don’t have to worry. Thank you very much for following School of Freebies. > read more

School of Freebies has moved to a new URL

Published on 2011-04-28 08:54:26

Yes, School of Freebies has a new URL. If you have subscribed by RSS and is reading this, that means that you don’t have to worry. Thank you very much for following School of Freebies. > read more

School of Freebies has moved to a new URL

Published on 2011-04-28 08:54:26

Yes, School of Freebies has a new URL. If you have subscribed by RSS and is reading this, that means that you don’t have to worry. Thank you very much for following School of Freebies. > read more

Image and Photoediting with Paint.Net

Published on 2011-04-27 02:14:00

Paint.NET is free image and photo editing software for computers that run Windows. It can perform basic and intermediate editing and the�basic tools such as crop, rotate, color adjustment, red eye removal and collages.�What makes Paint.Net > read more

Image and Photoediting with Paint.Net

Published on 2011-04-27 02:14:00

Image and Photoediting with Paint.Net

Published on 2011-04-27 02:14:00

Image and Photoediting with Paint.Net

Published on 2011-04-27 02:14:00

Paint.NET is free image and photo editing software for computers that run Windows. It can perform basic and intermediate editing and the basic tools such as crop, rotate, color adjustment, red eye removal and collages. What makes Paint.Net differen > read more

Exploring the Universe with Worldwide Telescope

Published on 2011-04-25 03:04:00

If you have enjoyed exploring Earth with Google Earth and the stars with Stellarium, another stunning program �that you should see is the Worldwide Telescope. �WorldWide Telescope (WWT) enables your computer to function as a virtual telesco > read more

Exploring the Universe with Worldwide Telescope

Published on 2011-04-25 03:04:00

Exploring the Universe with Worldwide Telescope

Published on 2011-04-25 03:04:00

Exploring the Universe with Worldwide Telescope

Published on 2011-04-25 03:04:00

5 Great Online Photo Sharing and Storage Sites

Published on 2011-04-22 17:56:00

1.) Picasa. Picasa is a Google-owned �online image organizer and viewer with an integrated photosharing website. � Aside from being an organizer, simple image editing can also be performed in Picasa such as red eye reduction, cropping, and > read more

5 Great Online Photo Sharing and Storage Sites

Published on 2011-04-22 17:56:00

5 Great Online Photo Sharing and Storage Sites

Published on 2011-04-22 17:56:00

1.) Picasa. Picasa is a Google-owned online image organizer and viewer with an integrated photosharing website. Aside from being an organizer, simple image editing can also be performed in Picasa such as red eye reduction, cropping, and color en > read more

Store online and Publish with Issuu

Published on 2011-04-18 19:09:00

Issuu�is an online service that allows for realistic and customizable viewing of digitally uploaded material, such as portfolios, books, magazine issues, newspapers, and other print media.�Watch the video below to know more about Issuu. Jus > read more

Store online and Publish with Issuu

Published on 2011-04-18 19:09:00

Issuu is an online service that allows for realistic and customizable viewing of digitally uploaded material, such as portfolios, books, magazine issues, newspapers, and other print media. Watch the video below to know more about Issuu. Just like > read more

Talking Computers

Published on 2011-04-17 23:30:00

One of the areas of research in artificial intelligence is to make computers converse like human beings. A theoretically perfect machine should be able to answer questions that you would mistake him for a human. The four applications below are … > read more

Talking Computers

Published on 2011-04-17 23:30:00

Free tools for teachers from Microsoft

Published on 2011-04-14 20:04:00

Microsoft is known for commercial software, but recently, it has given �a lot free software, �tools, and addins. Several months ago, it has released Microsoft Mathematics 4.0, a powerful calculator and graphing software. The video below sho > read more

Free tools for teachers from Microsoft

Published on 2011-04-14 20:04:00

Microsoft is known for commercial software, but recently, it has given a lot free software, tools, and addins. Several months ago, it has released Microsoft Mathematics 4.0, a powerful calculator and graphing software. The video below shows some > read more

Take notes with DeskNotes

Published on 2011-04-12 16:50:00

DeskNotes�is a Windows desktop application for keeping your notes on Windows desktop, like sticky notes. It helps you to keep your ideas in the place you visit and see the most of the time while sitting in front of your … Continue reading > read more

Take notes with DeskNotes

Published on 2011-04-12 16:50:00

DeskNotes is a Windows desktop application for keeping your notes on Windows desktop, like sticky notes. It helps you to keep your ideas in the place you visit and see the most of the time while sitting in front of your computer. One of the things > read more

Google Sketchup 8 is now available

Published on 2011-04-10 15:58:00

Last month, I shared an amazing 3d software called Google Sketchup. �I forgot to mention that recently, it has released a new version — the Google Sketchup 8. Sketchup 8 has excellent and cool new features.�Some of the features includ > read more

Google Sketchup 8 is now available

Published on 2011-04-10 15:58:00

Last month, I shared an amazing 3d software called Google Sketchup. I forgot to mention that recently, it has released a new version -- the Google Sketchup 8. Sketchup 8 has excellent and cool new features. Some of the features include the followi > read more

K-Lite Codec Pack

Published on 2011-04-08 20:16:00

If you can’t play your audio or video file, chances are your operating system does not support your file’s audio/video format. If you can’t find a third party audio/video player, you may want to install K-Lite Codec Pack.� K-Li > read more

K-Lite Codec Pack

Published on 2011-04-08 20:16:00

If you can't play your audio or video file, chances are your operating system does not support your file's audio/video format. If you can't find a third party audio/video player, you may want to install K-Lite Codec Pack. K-Lite Codec Pack (availa > read more

Sync and share with Dropbox

Published on 2011-04-06 18:48:00

Dropbox is a free software where you can sync your files online, across your computer, and even your phone. In Dropbox, the changes you made in one computer reflects the changes on all of your computers. Dropbox can be sync also available onl > read more

Screencasts and Screenshots with Jing

Published on 2011-04-05 22:12:00

Jing (Windows/Mac) is a software that lets you take a picture or make a short video of what you see on your computer monitor. With Jing, you can share your picture or video instantly via web, email, IM, Twitter or in your blog. Simple and free. > read more

Windows Game Pack for kids and kids at heart

Published on 2011-04-04 19:30:00

If you are tired of Playing World of Warcraft, Runescape, or other internet games, you may want to switch from time to time to simple games and be a kid at heart. The website http://www.free-windows-games.com/ offers a lot of exciting games for f > read more

Send email to the future you

Published on 2011-04-03 23:22:00

I decided that aside from the free stuff on the internet, I am also going to share to you some cool stuff. And this is the first one. Futureme.org is cool site that lets you send letters to the future you. You can choose your email that will receive > read more

Edit your photos online with Picnik

Published on 2011-04-03 02:44:00

Picnik is an online photoediting tool that is easy to use and has a sufficient number of tools to perform simple editing. In Picnik, you can easily grab your photos from online storage: Facebook, Flicker, Myspace, Photobucket or Picasa. Chicken (m > read more

Blog for Free

Published on 2011-04-01 19:48:00

If you want to start a blog, there are many blogging platforms that you can use for free; however, I will just used about the two platforms that I have used: Wordpress and Blogger. Wordpress.com. Wordpress is probably the best free blogging host/p > read more

Gapminder: A statistical animation software

Published on 2011-04-01 06:39:00

Gapminder is a stunning information visualization software for statistical animations. It was created by Hans Rosling and is currently in beta version. Gapminder uses bubble charts. By default it shows five variables: Two numeric variables on the > read more

The Audacity of Note

Published on 2011-03-31 07:31:00

Audacity is a free audio editing software available in Windows, Mac, Linux and BSD. It is capable of recording and playing sounds, multitrack mixing, amplitude envelope editing, conversion of casette taps noise removal and more. Audacity is av > read more

Online Marketing

Blog Feed: School of Freebies

Home > Blog Directory > Newest Posts > Blog Feed: School of Freebies