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.
National Council of Teachers of Mathematics
The Math Forum: Pascal's Triangle
Students can find all sorts of number patterns in Pascal's Triangle.
Mathigon
Mathigon: Algebra: Sequences: Pascal's Triangle
This lesson focuses on Pascal's Triangle, a number pyramid in which every cell is the sum of the two cells directly above. It contains all binomial coefficients, as well as many other number sequences and patterns.
Shodor Education Foundation
Shodor Interactivate: Lesson: Pascal's Triangle
In this lesson, students will participate in discussions and activities that will have them explore the number patterns and fractal properties of Pascal's Triangle.