Students in Ms. Frey's second grade class explored building and drawing geometric solids. In this lesson, students built rectangular prisms with linker cubes. They then drew their prisms on isometric dot paper. When using different colored linker cubes, the students can focus on the faces and edges they can actually when recording the solids. The students colored in their solids according to the colors of the linker cubes. Some students struggled (both examples on the right have errors coloring in the faces). The example on the bottom left used a strategy of marking each face with the letter of the color before coloring in the prisms. Students recorded the dimensions of their prisms.

When teaching students how to draw with the isometric dot paper, always start by showing them how to draw one cube first. Some students will struggle, so have them start with much smaller prisms (1 x 2 x 2).

Indicators

2.2.3.1 make solid figures including cubes, rectangular prisms, spheres, cylinders, cones, and pyramids.

2.3.1.2 identify, describe and classify common three-dimensional geometric objects (including cube, rectangular
prism, pyramid, prism, sphere, cone, cylinder) and relate them to their twodimensional counterparts (square, rectangle, triangle, circle).

2.3.3.1 draw geometric figures using tools and technology.

2.3.3.2 construct with blocks a solid to match a given picture or model.