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Counting Methods Unit Plan

Introducing Permutations and Factorial Notation

Achievement Indicators

4.1 Represent and solve counting problems, using a graphic organizer.
4.4 Solve a contextual counting problem, using the fundamental counting principle, and explain the reasoning.

5.1 Represent the number of arrangements of n elements taken n at a time, using factorial notation.
5.2 Determine, with or without technology, the value of a factorial.
5.3 Simplify a numeric or an algebraic fraction that contains factorials in both the numerator and denominator.
5.4 Solve an equation that involves factorials.

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Discovery Based Learning

1.  Algebra 2: Permutations -- TInspire Activity [T]

Students are led through the development of the formula for finding n objects taken n at a time and then n objects taken r at a time.

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Lesson Links:

  • Click here for ERLC Lesson Link. Please use this lesson as a framework for your own teaching environment.
    • Click here for a pdf version of the same ERLC Lesson Link.

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Videos:

Permutations and Factorial Notation -- (Youtube)