7th Grade · Geometry
Prism
7.G.A.3
Definition
A three-dimensional solid with two identical, parallel polygonal bases connected by rectangular lateral faces. Named by the shape of the base.
Teach it
Where it is taught, with guided notes, practice, homework, an exit ticket and an interactive Teacher Deck.
Examples
- A rectangular prism has 2 bases + 4 lateral faces = 6 faces total.
- A triangular prism has triangular bases; a hexagonal prism has hexagonal bases.
Key rule
Name a prism by the shape of its base.
Memory hook
Two matching ends, rectangles connecting them.