ALEX Lesson Plans
Thinkfinity Lesson Plans
Subject: Mathematics Title: Soda Cans
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Description: This reproducible activity sheet, from an Illuminations lesson, guides students through a simulation in which they try different arrangements to make the most efficient use of space and thus pack the most soda cans into a rectangular packing box. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
Subject: Mathematics Title: Hexagon Island
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Description: This student interactive, from an Illuminations lesson, allows students to explore the distances from an interior point of a hexagon to its sides and determine the sum of these perpendicular distances. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
Subject: Mathematics Title: Chord Problem
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Description: This reproducible transparency, from an Illuminations lesson, contains a chord problem in which students must identify the value of Y and explain their work. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
Subject: Mathematics Title: Power of Points
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Description: In this Illuminations lesson, students discover that the ChordChord Power theorem, the SecantSecant Power theorem, and the TangentSecant Power theorem are related applications of the Power of Point theorem. Students use their discoveries to solve numerical problems. In addition, there are links to an online activity and other related resources. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
Subject: Mathematics Title: Power of a Point
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Description: This student interactive, from an Illuminations lesson, allows students to investigate what happens when point P is moved to various points within, on, and outside the circle. Students identify any relationships among the segments and radius. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
Subject: Mathematics Title: Soccer Problem
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Description: This student interactive, from an Illuminations lesson, allows students to investigate a soccer problem by changing the location of a soccer player as well as the distance between the player and the goal posts. The angle changes as the player is moved, and students must therefore determine the player s position so that the angle is maximized. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12

