Have the students draw a design on paper using only triangles. Ask them to label the types of triangles with the names they chose. Provide correct geometric names for students who ask.

You can split a rectangle into 2 right-angled triangles. Image caption, STEP 2: Use the compass to draw a circle. Put a dot where the compass rested and use the ruler to draw a horizontal line ...

To expand students mathematical understanding of non-prototypical triangles as children frequently develop very restricted conceptions of geometric shapes ... Have the students draw triangles using ...