# Geometry

Parent topic:
Mathematics
• ### Mean Value Theorem: Quick Intuitive Tests

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Tim Brzezinski

• ### Parallel Lines in the Coordinate Plane: Quick Exploration

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GeoGebra Team

• ### Perpendicular Lines in the Coordinate Plane: Quick Exploration

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GeoGebra Team

• ### Building Surfaces with Cross Sections and Function Modeling

Activity

Tim Brzezinski

• ### Exploring Intersections of Planes

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GeoGebra Team

• ### Mystery Scalar and Vectors Investigation

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Tim Brzezinski

• ### Open Middle: Building Parallelograms

Activity

Tim Brzezinski

• ### Finding Area by Decomposing and Rearranging: IM 6.1.2

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GeoGebra Classroom Activities

• ### Parallelograms: IM 6.1.4

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GeoGebra Classroom Activities

• ### Bases and Heights of Parallelograms: IM 6.1.5

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GeoGebra Classroom Activities

• ### Tiling the Plane: IM 6.1.1

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GeoGebra Classroom Activities

• ### Reasoning to Find Area: IM 6.1.3

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GeoGebra Classroom Activities

• ### Area of Parallelograms: IM 6.1.6

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GeoGebra Classroom Activities

• ### From Parallelograms to Triangles: IM 6.1.7

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GeoGebra Classroom Activities

• ### Area of Triangles: IM 6.1.8

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GeoGebra Classroom Activities

• ### Formula for the Area of a Triangle: IM 6.1.9

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GeoGebra Classroom Activities

• ### Bases and Heights of Triangles: IM 6.1.10

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GeoGebra Classroom Activities

• ### Polygons: IM 6.1.11

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GeoGebra Classroom Activities

• ### Moving in the Plane: IM 8.1.1

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GeoGebra Classroom Activities

• ### What Are Scaled Copies?: IM 7.1.1

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GeoGebra Classroom Activities

• ### Naming the Moves: IM 8.1.2

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GeoGebra Classroom Activities

• ### Making the Moves: IM 8.1.4

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GeoGebra Classroom Activities

• ### Coordinate Moves: IM 8.1.5

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GeoGebra Classroom Activities

• ### Corresponding Parts and Scale Factors: IM 7.1.2

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GeoGebra Classroom Activities