Two-Dimensional Shapes and Their Attributes
1. Lines and Line Segments
1. Explore Parallel Lines
2. Exploring Perpendicular Lines
3. Creating Lines
2. Polygons
1. Geoboard Polygons
2. Concave/Convex
3. Angles
1. How to Construct an Angle
2. Looking at Angles
3. Animated Acute Angles
4. Animated View of Obtuse Angles.
5. Types of Angles
4. Triangles
1. Triangle Lengths Exploration
2. Triangle Classification Challenge
3. Triangle Classification Examples
4. Triangle with Sides and Angles
5. Quadrilaterals
1. Quadrilaterals
2. Classifying Quadrilaterals

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Two-Dimensional Shapes and Their Attributes

Lillian Petersen, Mar 23, 2016

Lines and Line Segments
1. Explore Parallel Lines
2. Exploring Perpendicular Lines
3. Creating Lines
Polygons
1. Geoboard Polygons
2. Concave/Convex
Angles
1. How to Construct an Angle
2. Looking at Angles
3. Animated Acute Angles
4. Animated View of Obtuse Angles.
5. Types of Angles
Triangles
1. Triangle Lengths Exploration
2. Triangle Classification Challenge
3. Triangle Classification Examples
4. Triangle with Sides and Angles
Quadrilaterals
1. Quadrilaterals
2. Classifying Quadrilaterals

Lines and Line Segments

1. Explore Parallel Lines
2. Exploring Perpendicular Lines
3. Creating Lines

Explore Parallel Lines

Polygons

1. Geoboard Polygons
2. Concave/Convex

Geoboard Polygons

You're objective is to find the "rules" or characteristics of polygons. The polygon tool will only let you create polygons, nothing else. Find which shapes cannot be made and the reason why. One challenge you face is organizing your work. Make sure you keep track of your ideas of different tries.