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Same Shape, Different Size is a free printable Kindergarten math worksheet on size invariance — a big triangle and a tiny one are both triangles, aligned to Common Core standard K.G.A.2. It prints 5 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 19 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Same Shape, Different Size

K.G.A.2

NameDate

Sort each pair into the right box.

1.Sort each one into the right box.

Sort: a small sphere and a big cube, a big circle and a small sphere, a big square and a small triangle, a small cube and a big cube

Same shapeDifferent shapes
2.Sort each one into the right box.

Sort: a big circle and a small sphere, a long rectangle and a short rectangle, a big square and a small triangle, a big triangle and a small rectangle

Same shapeDifferent shapes
3.Sort each one into the right box.

Sort: a big triangle and a small rectangle, a large circle and a small circle, a large hexagon and a small circle, a small cube and a big cube

Same shapeDifferent shapes
4.Sort each one into the right box.

Sort: a small circle and a big square, a big square and a small triangle, a huge hexagon and a small hexagon, a big triangle and a tiny triangle

Same shapeDifferent shapes
5.Sort each one into the right box.

Sort: a big square and a small square, a big triangle and a tiny triangle, a huge hexagon and a small hexagon, a small sphere and a big cube

Same shapeDifferent shapes

LessonPrint · K.G.A.2 · Set 19 · free to copy for classroom use

Answer key — Same Shape, Different Size

Set 19. Prints on its own sheet.

  1. 1.Same shape: a small cube and a big cube; Different shapes: a small sphere and a big cube, a big circle and a small sphere, a big square and a small triangle
  2. 2.Same shape: a long rectangle and a short rectangle; Different shapes: a big circle and a small sphere, a big square and a small triangle, a big triangle and a small rectangle
  3. 3.Same shape: a large circle and a small circle, a small cube and a big cube; Different shapes: a big triangle and a small rectangle, a large hexagon and a small circle
  4. 4.Same shape: a huge hexagon and a small hexagon, a big triangle and a tiny triangle; Different shapes: a small circle and a big square, a big square and a small triangle
  5. 5.Same shape: a big square and a small square, a big triangle and a tiny triangle, a huge hexagon and a small hexagon; Different shapes: a small sphere and a big cube

Last reviewed 2026-09-05. Aligned to K.G.A.2 of the Common Core State Standards for Mathematics.