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 Lesson Plans (5)

## ALEX Lesson Plans

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Subject: Mathematics (9 - 12)
Title: What you know about the Bermuda Triangle?
Description: The basis of this lesson is for students to form a connection between the importance of geometry as it relates to the Bermuda Triangle.  Students should think about the geographical locations and how they form a particular type of triangle.  Within the triangle exists a relationship between the angles and the length of the sides.  As the students reflect prior concepts and skills should come to mind to help them solve the problem. The ideas presented here can be used as the final lesson in a unit on triangles to summarize all that students have learned. Alternatively, the main problem from this lesson could be used as a final assessment activity for a unit on triangles. This is a College- and Career-Ready Standards showcase lesson plan.

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Subject: Mathematics (8 - 12)
Description: This is an inquiry lesson used to review Algebra 1 objectives by applying them to geometry concepts. Students explore the properties of quadrilaterals and classify them by definition. This lesson can be use in geometry classes. Students in geometry classes can apply theorems and definitions of quadrilaterals rather than as an inquiry lesson.This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone Family Foundation.

## Thinkfinity Lesson Plans

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Subject: Mathematics
Title: Discovering Pick's Theorem
Description: This reproducible worksheet, from an Illuminations lesson, leads students through an investigation of Pick's Theorem using geoboards.
Thinkfinity Partner: Illuminations

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Subject: Mathematics
Title: Location, Location, Location
Description: In this Illuminations lesson, students use a dynamic geometry applet to investigate the relationship between the distances from a point inside a regular polygon to each side. In addition, there are links to online activity sheets and other related resources.
Thinkfinity Partner: Illuminations