|In this lesson, students sort two-dimensional shapes and identify and
describe attributes of the shapes. Attributes for sides (congruent, parallel,
perpendicular) and angles (congruent, acute, obtuse, right) are investigated.
Then, students compare two-dimensional shapes with three-dimensional figures.
They identify attributes of three-dimensional shapes such as cones, cylinders,
prisms, pyramids and spheres. Students describe and compare the attributes and
build models with physical materials.