# Perimeter

• ### How Well Can You Measure?: IM 7.3.1

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GeoGebra Classroom Activities

• ### Stained-Glass Windows: IM 7.3.11

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GeoGebra Classroom Activities

• ### Decimal Representations of Rational Numbers: IM 8.8.14

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GeoGebra Classroom Activities

• ### The Areas of Squares and Their Side Lengths: IM 8.8.1

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GeoGebra Classroom Activities

• ### Side Lengths and Areas: IM 8.8.2

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GeoGebra Classroom Activities

• ### Rational and Irrational Numbers: IM 8.8.3

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GeoGebra Classroom Activities

• ### Square Roots on the Number Line: IM 8.8.4

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GeoGebra Classroom Activities

• ### Reasoning About Square Roots: IM 8.8.5

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GeoGebra Classroom Activities

• ### Finding Side Lengths of Triangles: IM 8.8.6

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GeoGebra Classroom Activities

• ### A Proof of the Pythagorean Theorem: IM 8.8.7

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GeoGebra Classroom Activities

• ### Finding Unknown Side Lengths: IM 8.8.8

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GeoGebra Classroom Activities

• ### The Converse: IM 8.8.9

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GeoGebra Classroom Activities

• ### Finding Distances in the Coordinate Plane: IM 8.8.11

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GeoGebra Classroom Activities

• ### Applying Circumference: IM 7.3.4

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GeoGebra Classroom Activities

• ### Distinguishing Circumference and Area: IM 7.3.10

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GeoGebra Classroom Activities

• ### Circumference and Wheels: IM 7.3.5

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GeoGebra Classroom Activities

• ### Exploring Circumference: IM 7.3.3

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GeoGebra Classroom Activities

• ### Infinite Decimal Expansions: IM 8.8.15

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GeoGebra Classroom Activities

• ### When Is the Same Size Not the Same Size?: IM 8.8.16

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GeoGebra Classroom Activities

• ### Applications of the Pythagorean Theorem: IM 8.8.10

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GeoGebra Classroom Activities

• ### Cube Roots: IM 8.8.13

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GeoGebra Classroom Activities

• ### Edge Lengths and Volumes: IM 8.8.12

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GeoGebra Classroom Activities

• ### Area of Circles

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Anthony OR 柯志明

• ### Square Pyramid: Underlying Anatomy

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Tim Brzezinski