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

LessonPrint · 1.G.A.1 · Set 7 · free to copy for classroom use

Answer key — Which Attribute Matters?

Set 7. Prints on its own sheet.

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