Directly compare two objects by length (K.MD.A.1, K.MD.A.2)
Exercise
Difficulty 1
~1 min
math.gK.s.ex_34
Align Baseline
Prompt
Place two pencils side by side with their tops at the same edge of the table. Which is longer?
M-K-S-EX-34-A
Manipulative
Physical / non-image
Two pencils on a wooden table aligned at the table edge with one clearly longer than the other; a child's finger touches the shared baseline.
How it's presented
mode
manipulative
Answer criteria
type
comparison
valID responses
pencil Apencil Bsame length
Hints
- Make sure both START at the same line.
- The one that reaches farther down is longer.
Misconceptions to watch
- Compares without aligning
- Says longer is shorter (reverses vocab)
Used in lessons