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

One paper per student

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

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 has one side taken away. Is it still a rectangle?

2.A rectangle is colored red. Is it still a rectangle?

3.A square is made much smaller. Is it still a square?

4.A hexagon is turned upside down. Is it still a hexagon?

5.A triangle is turned upside down. Is it still a triangle?

6.A triangle has one side taken away. Is it still a triangle?

7.A square has one more side added. Is it still a square?

8.A rectangle has one corner cut off. Is it still a rectangle?

9.A triangle is moved to the other side of the page. Is it still a triangle?

10.A hexagon has one more side added. Is it still a hexagon?

LessonPrint · 1.G.A.1 · Set 10 · free to copy for classroom use

Answer key — Which Attribute Matters?

Set 10. Prints on its own sheet.

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

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