## The Geometric Representation of Greatest Common Factor

A factor is an integer that divides another integer. The number 6 is a factor of 12 since 6 divides 12. It is easy to see that 1, 2, 3, 4, and 12 are also factors of 12. Looking at the numbers in the tables below, we can see that some numbers have only 2 factors, 1 and itself. These numbers are called prime numbers.

Two or more numbers can have common factors. For example, let us consider the factors of 12 and 18.

Factors of 12: 1, 2, 3, 4, 6, 12

Factors of 18: 1, 2, 3, 6, 9, 18  » Read more

## Notable Posts in Elementary School Mathematics

Mathematics and Multimedia has grown extensively since I first created in 2009, and honestly, I have stopped updated the pages or have created categories. There are many interesting posts that have been buried in this blog. Therefore, I will slowly post these categories in the days to come.

As part of this long term goal, I am now creating a list of topics under one category and create them as posts. This way, it will be easier for you to navigate them later. This is the first among these category posts.

In this post, I am going to share to you my notable posts in Elementary School Mathematics.

Area Derivation Series

I hope you enjoy these posts.

## Playful Minds: A Great iPad Math Game for Kids

Playful Minds is math game for kids aged 5-8. At first, players are allowed to select islands to explore. During the journey, they have to answer math questions where they earn points and rewards. Points can be used to buy items such as shirts, pants, and shades to improve and customize the players’ avatar.

What I like about Playful Minds is the variety of exercises. Some of the exercises I have played are the four basic operations, counting money, comparing weights, translating words to numbers and graphing.  According to the description in Apple Store, Playful Minds is a complete review of the US and UK programs for children with ages 5-8. It contains more than 300 exercises covering Algebra, Geometry, Data Analysis, Measurement and Number and Operations. » Read more

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