ALEX Lesson Plans
Subject: Mathematics (9  12) Title: Classifying Complex Numbers
Description: This lesson helps students distinguish between strictly complex numbers, strictly real numbers and strictly imaginary numbers while learning that real numbers and imaginary numbers are subsets of the set of complex numbers.
Thinkfinity Lesson Plans
Subject: Mathematics Title: Approximations of Pi
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Description: This student reproducible, from an Illuminations lesson, provides information about and several examples of approximations for the constant pi. Thinkfinity Partner: Illuminations Grade Span: 6,7,8
Subject: Mathematics Title: Caesar Cipher
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Description: In this lesson, one of a multipart unit from Illuminations, students investigate the Caesar substitution cipher. Text is encoded and decoded using inverse operations. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12

