ALEX Lesson Plans
Subject: Mathematics (9  12), or Technology Education (9  12) Title: Parallel Photography
Description: Students will use laptops and digital cameras to understand parallel lines, corresponding angles, alternate interior angles, alternate exterior angles, and sameside (consecutive) interior angles. Postersize concept maps will be created by students and posted on the classroom "word wall."
Thinkfinity Lesson Plans
Subject: Mathematics,Social Studies Title: Hospital Map Activity Sheet
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Description: This student reproducible, from an Illuminations lesson, contains a map of the area wherein students must choose a location to build a new hospital so it is equidistant from Boise, Idaho; Helena, Montana; and Salt Lake City, Utah. Students do their work on a blank transparency and overlay their work onto this map. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
Subject: Mathematics Title: IGD: Angle Bisector
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Description: This student interactive, from Illuminations, helps students understand and investigate angle bisectors. Students read a definition and then construct an angle bisector using the interactive tool. Finally, students take a closer look at the properties of angle bisectors by answering a set of questions and then checking their answers. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
Subject: Mathematics Title: IGD: Perpendicular Bisector
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Description: This student interactive, from Illuminations, helps students understand and investigate perpendicular bisectors, which are lines perpendicular to a segment that divide it into two congruent segments. Students read a definition and then construct a perpendicular bisector of a segment using the interactive tool. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
Subject: Mathematics Title: IGD: Perpendicular Lines
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Description: This student interactive, from Illuminations, helps students understand and investigate perpendicular lines. Students read a definition, and then use the interactive to explore the properties of two perpendicular lines. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
Subject: Mathematics Title: Interactive Geometry Dictionary: Lines in Geometry
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Description: This student interactive, from Illuminations, explores lines and their importance to geometry. Students can investigate the definitions and properties of perpendicular lines, segments, medians, Euler lines, and more. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
Subject: Mathematics Title: Dividing a Town into Pizza Delivery Regions
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Description: In this Illuminations lesson, students must determine how to divide a town based on which pizzeria is closest to a given location. To solve this problem, students will construct perpendicular bisectors, find circumcenters, calculate area, and use proportions. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12

