Summary
Happy Learning explains triangles and how we sort them by their sides and angles. A clear, friendly animated lesson that drops easily into a unit, a center, or a quick review.
Viewer safety
All ages
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Teaching resources
Discussion questions
Discussion
Geometry is the math of shapes -- we name and sort them by their sides, angles, corners, and faces.
- What shape or geometry idea does this video explain?
- How many sides, angles, or faces does it have?
- Can you find that shape somewhere in the room?
Quick work-a-long
Vocabulary: shape, side, angle, polygon, face, vertex.
Try it: Find or draw the shape from the video and count its sides, angles, or faces.