CCSS K.G.A.3 Worksheets

Kindergarten · Geometry

Tell the difference between two dimensional flat shapes and three dimensional solid shapes.

Below are free printable worksheets that support K.G.A.3. Print them as PDFs, or generate a fresh one. Every math answer key is computed in code, so it is never wrong.

Teach this standard

Deliver a whole lesson on K.G.A.3 from a textbook-grade teaching unit, with a hook, worked examples, diagrams, misconceptions, and an exit ticket.

Naming and describing 2D and 3D shapes

Kindergarten (ages 5 to 6)

Teaching guide

What students learn

Tell the difference between two dimensional flat shapes and three dimensional solid shapes.

How to teach it

Sort a mixed pile of flat shapes and solid objects into two groups, then explain the rule: a 2D shape lies flat with no thickness; a 3D shape takes up space and you could hold it.

Worked example

I twinkle in the sky and have 5 points. What shape am I?

Answer: star

Generated and checked in code, so it is correct.

Watch out for

Confusing a picture of a shape (flat, on paper) with the solid object it represents, since a drawing of a cube is itself 2D.