Today we started a new unit focusing on geometry, with an emphasis on 3-D shapes. We explored with different blocks today to identify the variety of faces that each shape contained. We worked on developing vocabulary to describe 3-D shapes and their attributes (face, cube). The students also compared size, shape, and orientation of the different blocks we have in the classroom by matching a 3-D object to a 2-D outline of one of its faces. In class, we call the 2-D outlines of one side a footprint.