PIE 2-3 students build Icosahedrons

The students in Mrs. Powderly's 2-3 PIE class have been working on a geometry unit in mathematics. To add some fun to the geometry lesson, Mrs. Powderly decided to have her students construct their own geometric shapes. They decided to build icosahedrons! An icosahedron is a regular geometric solid (called a platonic solid) that has 20 equilateral triangles as faces. It has 12 vertices (points) and 30 edges (lines between the triangular faces.)

First, the students had to trace 20 circles.

Next, they had to carefully fold the circles into triangles.

 Then they could start putting the triangles together.

The teacher guides the children in placing their triangles together.

Ta-da! One is completed.

A whole pile of icosahedrons! Ask your child to describe to you how they made their icosahedron at school. The key mathematic vocabulary words you can quiz them on are: vertices (points), edges and faces.