Help children learn the vocabulary of geometric shapes and discriminate between different types of triangles.

*This activity uses the original constructive triangles activity boxes, but you can make your own triangles using card stock. This will save you money in the long run.

Bring the tray of triangels to the work area. The tray should include equilateral, scalene, and isosceles triangles all of the same size. Take out the equilateral triangles and describe the triangle to the child. Assist the child in observing tha each side is the same length. Line up the triangles to make a new triangle. Do the same activity with the other two types of triangles noting their shape, angles, and names. Repeat the activity in seperate lessons to help the child remember the names of each triangle. Place the triangles back in the tray.

The goal of this activity is to show various triangles contained within a larger triangle, discriminate geometric forms, prepare for geometry, development of line and form, and to develop creativity.

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