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Which Attribute Matters? is a free printable Grade 1 math worksheet on distinguishing defining from non-defining attributes, aligned to Common Core standard 1.G.A.1. It prints 10 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 25 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.

Which Attribute Matters?

1.G.A.1

NameDate

Write yes or no.

1.A square has one side made curved. Is it still a square?
2.A triangle has one side made curved. Is it still a triangle?
3.A rectangle is turned upside down. Is it still a rectangle?
4.A hexagon has one side taken away. Is it still a hexagon?
5.A hexagon has one side made curved. Is it still a hexagon?
6.A hexagon is turned upside down. Is it still a hexagon?
7.A rectangle is made much bigger. Is it still a rectangle?
8.A rectangle is moved to the other side of the page. Is it still a rectangle?
9.A hexagon is made much bigger. Is it still a hexagon?
10.A rectangle has one corner cut off. Is it still a rectangle?

LessonPrint · 1.G.A.1 · Set 25 · free to copy for classroom use

Answer key — Which Attribute Matters?

Set 25. Prints on its own sheet.

  1. 1.no
  2. 2.no
  3. 3.yes
  4. 4.no
  5. 5.no
  6. 6.yes
  7. 7.yes
  8. 8.yes
  9. 9.yes
  10. 10.no

Last reviewed 2026-09-05. Aligned to 1.G.A.1 of the Common Core State Standards for Mathematics.