CCSS 1.MD.A.1 Worksheets
Grade 1 · Measurement & Data
Order three objects by length and compare two objects indirectly using a third object.
Below are free printable worksheets that support 1.MD.A.1. Print them as PDFs, or generate a fresh one. Every math answer key is computed in code, so it is never wrong.
Teaching guide
What students learn
Order three objects by length and compare two objects indirectly using a third object.
How to teach it
Compare objects directly (line them up at one end) and by measuring with informal units, blocks or paperclips placed end to end with no gaps, then compare the counts.
Worked example
The book is 4 paperclips long. The crayon is 9 paperclips long. Which is shorter?
Answer: book
Generated and checked in code, so it is correct.
Watch out for
Not starting both objects from the same line, and leaving gaps or overlaps between informal units so the count is off.
Comparing Length worksheets
All comparing length worksheets →Pre-K Comparing Length
Set A · printable PDF · answer key
Pre-K Comparing Length
Set B · printable PDF · answer key
Pre-K Comparing Length
Set C · printable PDF · answer key
Pre-K Comparing Length
Set D · printable PDF · answer key
Pre-K Comparing Length
Set E · printable PDF · answer key
Pre-K Comparing Length
Set F · printable PDF · answer key