8th Grade · Geometry
Clockwise & Counterclockwise
8.G.A.3
Definition
The two directions of rotation. Counterclockwise is taken as the positive direction, opposite to the motion of clock hands.
Teach it
Where it is taught, with guided notes, practice, homework, an exit ticket and an interactive Teacher Deck.
Examples
- Unless told otherwise, rotations are counterclockwise (CCW).
- A 90° CW turn equals a 270° CCW turn.
Key rule
Counterclockwise is positive; clockwise is negative.
Memory hook
Two directions a figure can spin.