Building with the Mind’s Eye

Created by M4YC Lesson Study Teams

Curriculum – Geometry and Spatial Sense

For students to sort, classify two-dimensional shapes and three-dimensional figures by attributes; recognize symmetry; relate shapes to other shapes, designs, and to figures; and describe location using positional language.


Students and the teacher begin by sitting on the floor in a circle.


  • Unifix cubes – enough for all the students to use


  • Teacher construct simple 3-D figures using different coloured cubes.

  • Teacher describes how to build the figure step-by-step.


  • Students were asked to visualize what the figure would look like.

  • Teacher asks everyone to picture the figure in their mind and to describe it for the class.

  • Teacher then presents a picture of multiple unique figures, only one of which is the actual figure that was described.


  • Students are asked to identify which figure they had pictured and reason about how some of the options couldn’t have been what was described.

See Upside Down World for next lesson.