Education Technology

What's Your Combination

Published on 03/19/2012

Activity Overview

Students are first introduced to the counting principle and the factorial symbol. Then, they will calculate combinations and permutations using these formulas and the nCr, n!, and nPr commands on the graphing calculator.

Key Steps

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    Students will use nPr command on the graphing calculator to check their work on a permutation problem. 

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    Students will use the nCr command on the graphing calculator to check their work on a combination problem.