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

LessonPrint · 1.G.A.1 · Set 8 · free to copy for classroom use

Answer key — Which Attribute Matters?

Set 8. Prints on its own sheet.

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