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

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One paper per student

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

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

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

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

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

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

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

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

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

Same shapeDifferent shapes

LessonPrint · K.G.A.2 · Set 20 · free to copy for classroom use

Answer key — Same Shape, Different Size

Set 20. Prints on its own sheet.

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

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