# Featured

## Kakooma: Power Adding Puzzle

Kakooma is a wonderful puzzle created by mathematician, Greg Tang, to challenge children to see the operations visually requiring hundreds of mental calculations and strategies.

## Prime Factorization and Number of Factors Algorithm (3rd through 7th grade)

The logical extension to finding all of the factors of a number using the double/half method is to dissect numbers into their prime factorization. Every whole number greater than one can be factored into prime numbers multiplied by other prime numbers. For example, 12 = 2x2x3 or we say 2^2 x 3.

## Triangle Area = Half of Corresponding Rectangle (Prime and Composite Areas) (K-2nd Grade)(Tuesday-Friday only; not Monday classes)

Last week we explored the area of rectangles by looking at the multiplication of dimensions. It is only logical to extend this lesson to looking at the area of each rectangles corresponding triangle as exactly one half.

## Factoring: Rectangles and Double-Half Method

**Factor Pairs: Double-Half Method (Grades 3-6)**

## Look and Say Sequence Game: Code Theory

In mathematics, the look-and-say sequence is the sequence of integers