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 Lesson Plans (3) Interactives/Games (1) Learning Activities (4) Teacher Tools (1)

## Thinkfinity Lesson Plans

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Subject: Mathematics
Title: Soda Cans
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

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Subject: Mathematics
Title: Chord Problem
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

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Subject: Mathematics
Title: Power of Points
Description: In this Illuminations lesson, students discover that the Chord-Chord Power theorem, the Secant-Secant Power theorem, and the Tangent-Secant 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

## Web Resources

### Interactives/Games

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Geometry Step-by-Step
http://agutie.homest...
This site provides a mix of sound, science, and Incan history in order to raise students' interest in Euclidean geometry. Visitors will find geometry problems, proofs, quizzes, puzzles, quotations, visual displays, "scientific speculation", and more.

### Learning Activities

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Geometry Step-by-Step
http://agutie.homest...
This site provides a mix of sound, science, and Incan history in order to raise students' interest in Euclidean geometry. Visitors will find geometry problems, proofs, quizzes, puzzles, quotations, visual displays, "scientific speculation", and more.

### Teacher Tools

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Geometry Step-by-Step
http://agutie.homest...
This site provides a mix of sound, science, and Incan history in order to raise students' interest in Euclidean geometry. Visitors will find geometry problems, proofs, quizzes, puzzles, quotations, visual displays, "scientific speculation", and more.

## Thinkfinity Learning Activities

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Subject: Mathematics
Title: Hexagon Island
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

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Subject: Mathematics
Title: Power of a Point
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