In this lesson, students explore the attributes of three-dimensional shapes. Along with the three-dimensional shape names learned in Kindergarten (sphere, cube, and cylinder), they expand their vocabulary to include cone and rectangular prism. Students are presented with models of three-dimensional shapes as well as real-life examples to sort and classify based on defining attributes. Then they complete sentence frames that help to distinguish defining attributes from non-defining attributes. For example, "A [can] is in the shape of the [cylinder]. It has circles at the ends just like all cylinders. This cylinder is made of metal, but some cylinders are not."