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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 23 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 long rectangle and a short rectangle, a small cube and a big cube, a large hexagon and a small circle, a huge hexagon and a small hexagon

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

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

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

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

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

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

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

Sort: a long rectangle and a short rectangle, a small cube and a big cube, a big square and a small square, a large hexagon and a small circle

Same shapeDifferent shapes

LessonPrint · K.G.A.2 · Set 23 · free to copy for classroom use

Answer key — Same Shape, Different Size

Set 23. Prints on its own sheet.

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

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