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

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One paper per student

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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 large circle and a small circle, a small circle and a big square, a small sphere and a big cube, a long rectangle and a short rectangle

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

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

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

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

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

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

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

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

Same shapeDifferent shapes

LessonPrint · K.G.A.2 · Set 1 · free to copy for classroom use

Answer key — Same Shape, Different Size

Set 1. Prints on its own sheet.

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

Questions about Same Shape, Different Size

What does the Same Shape, Different Size worksheet cover?

It practices size invariance — a big triangle and a tiny one are both triangles — 5 questions for Kindergarten, all on Common Core K.G.A.2: Name a shape even when it is turned or a different size. The instruction to students is “Sort each pair into the right box”, and the answer key follows on the next sheet.

Which Common Core standard does Same Shape, Different Size practice?

CCSS.MATH.CONTENT.K.G.A.2 — K.G.A.2, under Geometry for Kindergarten. The published standard reads: “Correctly name shapes regardless of their orientations or overall size.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

Same Shape, Different Size is written for Kindergarten, typically ages 5-6. It is one of the sheets on K.G.A.2, so it suits any student working at that standard — including older students revisiting it and younger ones working ahead.

Does Same Shape, Different Size come with an answer key?

Yes. All 5 answers are generated from the same problems as the questions, so the key cannot drift out of step with the sheet. It starts on a fresh sheet of paper, after the questions, so it is not handed out with the class by accident.

How many different versions of Same Shape, Different Size can I print?

25 — one per student, and all 25 ask different questions. Set 1 downloads the whole class as a single PDF. Every version is fixed to its own address, so a sheet printed today holds the same problems when you reopen it next week.

Is Same Shape, Different Size free to print and photocopy?

Yes. Same Shape, Different Size, its answer key and its 25 versions are free to print and photocopy for your own class, with no account, no email capture and no subscription at the download step. Please do not resell them or republish them as your own.

More practice for K.G.A.2

Name a shape even when it is turned or a different size.

All Kindergarten worksheets

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