Shape Unit has 8 activities to learn Shape names and attributes. There are worksheets and group activities to reinforce the concepts required for mastry of the Geometry strand of the Common Core for Kindergarten or First.
Identify and describe shapes (squares, circles, triangles, rectangles,
hexagons, cubes, cones, cylinders, and spheres).
1. Describe objects in the environment using names of shapes, and
describe the relative positions of these objects using terms such as
above, below, beside, in front of, behind, and next to.
2. Correctly name shapes regardless of their orientations or overall size.
3. Identify shapes as two-dimensional (lying in a plane, “flat”) or threedimensional
Analyze, compare, create, and compose shapes.
4. Analyze and compare two- and three-dimensional shapes, in
different sizes and orientations, using informal language to describe
their similarities, differences, parts (e.g., number of sides and
vertices/“corners”) and other attributes (e.g., having sides of equal
5. Model shapes in the world by building shapes from components (e.g.,
sticks and clay balls) and drawing shapes.
6. Compose simple shapes to form larger shapes. For example, “Can you
join these two triangles with full sides touching to make a rectangle?”
Reason with shapes and their attributes.
1. Distinguish between defining attributes (e.g., triangles are closed and
three-sided) versus non-defining attributes (e.g., color, orientation,
overall size); build and draw shapes to possess defining attributes.
2. Compose two-dimensional shapes (rectangles, squares, trapezoids,
triangles, half-circles, and quarter-circles) or three-dimensional shapes
(cubes, right rectangular prisms, right circular cones, and right circular
cylinders) to create a composite shape, and compose new shapes from
the composite shape.4
3. Partition circles and rectangles into two and four equal shares, describe
the shares using the words halves, fourths, and quarters, and use the
phrases half of, fourth of, and quarter of. Describe the whole as two of,
or four of the shares. Understand for these examples that decomposing
into more equal shares creates smaller shares.
4Students do not need to learn formal names such as “right rectangular prism.”