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

LessonPrint · 1.G.A.1 · Set 16 · free to copy for classroom use

Answer key — Which Attribute Matters?

Set 16. Prints on its own sheet.

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

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