# ALEX Lesson Plan Resources

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ALEX Lesson Plans
Subject: Mathematics (4)
Title: Pizza Problems: An Angle Investigation
Description: This investigative lesson allows students to identify angle measurements as part of a larger angle. Students will deconstruct 180 degree angles into equal parts.  This is a College- and Career-Ready Standards showcase lesson plan.

Thinkfinity Lesson Plans
Subject: Mathematics
Title: Another Look at Fractions of a Set      Add Bookmark
Description: In this lesson, one of a multi-part unit from Illuminations, students identify fractions in real-world contexts from a set of items that are not identical. Students develop skills in problem-solving and reasoning as they think about their set and how to create new sets given specific fractional characteristics.
Thinkfinity Partner: Illuminations

Subject: Mathematics
Title: The Variable Machine      Add Bookmark
Description: This Illuminations lesson provides an introduction to the use of variables. Students explore the idea of variable as a symbol that can stand for any member of a set of numbers, and they substitute numbers for variables (letters) to discover unknown values.
Thinkfinity Partner: Illuminations

Subject: Mathematics