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

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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 taken away. Is it still a square?
2.A square is made much smaller. Is it still a square?
3.A triangle is colored red. Is it still a triangle?
4.A triangle has one side made curved. Is it still a triangle?
5.A hexagon has one more side added. Is it still a hexagon?
6.A triangle has one side taken away. Is it still a triangle?
7.A rectangle has one corner cut off. Is it still a rectangle?
8.A hexagon is made much bigger. Is it still a hexagon?
9.A hexagon is colored red. Is it still a hexagon?
10.A triangle is made much smaller. Is it still a triangle?

LessonPrint · 1.G.A.1 · Set 20 · free to copy for classroom use

Answer key — Which Attribute Matters?

Set 20. Prints on its own sheet.

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

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