5th Grade · Measurement & Data
Cubic Unit
5.MD.C.3
Definition
A cube measuring one unit on each side, used to measure volume.
Examples
- A prism that is 5 units by 2 units by 3 units holds 30 cubic units.
- A cube 1 unit on every edge is exactly 1 cubic unit.
Key rule
Volume is counted by how many cubic units fit inside a solid.
Memory hook
A little cube that measures the big space.