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Same Number of Sides is a free printable Kindergarten maths worksheet on grouping by side count, aligned to Common Core standard K.G.B.4. 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 pupils 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 pupil

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All 25 sets ask different questions.

Same Number of Sides

K.G.B.4

NameDate

Sort each one into the right box.

1.Sort each one into the right box.

Sort: hexagon, octagon, heptagon, pentagon

4 sidesMore than 4
2.Sort each one into the right box.

Sort: kite, hexagon, square, octagon

4 sidesMore than 4
3.Sort each one into the right box.

Sort: rhombus, rectangle, kite, hexagon

4 sidesMore than 4
4.Sort each one into the right box.

Sort: kite, pentagon, octagon, heptagon

4 sidesMore than 4
5.Sort each one into the right box.

Sort: oblong, kite, rectangle, hexagon

4 sidesMore than 4

LessonPrint · K.G.B.4 · Set 1 · free to copy for classroom use

Answer key — Same Number of Sides

Set 1. Prints on its own sheet.

  1. 1.4 sides: —; More than 4: hexagon, octagon, heptagon, pentagon
  2. 2.4 sides: kite, square; More than 4: hexagon, octagon
  3. 3.4 sides: rhombus, rectangle, kite; More than 4: hexagon
  4. 4.4 sides: kite; More than 4: pentagon, octagon, heptagon
  5. 5.4 sides: oblong, kite, rectangle; More than 4: hexagon

Questions about Same Number of Sides

What does the Same Number of Sides worksheet cover?

It practises grouping by side count — 5 questions for Kindergarten, all on Common Core K.G.B.4: Compare shapes and describe how they are alike and different. The instruction to pupils is “Sort each one into the right box”, and the answer key follows on the next sheet.

Which Common Core standard does Same Number of Sides practise?

CCSS.MATH.CONTENT.K.G.B.4 — K.G.B.4, in the Geometry domain for Kindergarten. The published standard reads: “Analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, parts, and other attributes.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

Same Number of Sides is written for Kindergarten, typically ages 5-6. It is one of the sheets on K.G.B.4, so it suits any pupil working at that standard — including older pupils revisiting it and younger ones working ahead.

Does Same Number of Sides 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 Number of Sides can I print?

25 — one per pupil, 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 Number of Sides free to print and photocopy?

Yes. Same Number of Sides, 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.

Is there a lesson plan to teach K.G.B.4?

Yes — “Comparing Shapes by Their Parts” is a 30-minute Kindergarten plan for K.G.B.4, timed section by section, with the misconceptions to expect and an exit ticket. Same Number of Sides is the practice that follows it.

More practice for K.G.B.4

Compare shapes and describe how they are alike and different.

Teaching this next? Comparing Shapes by Their Parts is the 30-minute plan for it, with the misconceptions to expect.

All Kindergarten worksheets

Last reviewed 2026-09-05. Aligned to K.G.B.4 of the Common Core State Standards for mathematics.