## 7 Amazing Facts About Pascal’s Triangle

Pascal’s Triangle is a triangular array of numbers where each number on the “interior” of the triangle is the sum of the two numbers directly above it.  It was named after French mathematician Blaise Pascal. There are many interesting things about the Pascal’s triangle. In this post, we explore seven of these properties.  » Read more

## Math Book: The Magic of Pineapples

William Emeny, a friend of mine who blogs at Great Maths Teaching Ideas has written another great math book titled the  The Magic of Pineapples: A Brain Tingling Adventure Through Amazing  Mathematics . The book highlights mathematical beauty through patterns, nature, and numbers. Mathematics students,  teachers, and enthusiasts who want to know more about the wonders of mathematics should definitely read this book. Among the topics discussed in The Magic of Pineapples are The Golden Ratio, exponential growth and decay, prime numbers, and Pascal’s triangle.

The following is the description of the book by the author. » Read more

## Counting the Number of Subsets in a Set

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 have a group with 2 members, 3 members, 4 members, and 5 members.  The members in each group are listed below.  » Read more

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