National Council of Teachers of Mathematics
The Math Forum: Pascal's Triangle and the Ice Cream Cones
Dr. Math explains how Pascal's triangle can be used to determine the possible combinations of ice cream cones that can be made with different numbers of flavors. His response also includes an explanation using combination functions.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Pascal's Triangle and Binomial Expansions
This Math Forum author shows how combinations can be used to identify the pattern in Pascal's Triangle.