Grid Perimeter
Count the outside edges of the shape, not its filled squares.
Getting ready…
How to play
Count the outside edges of the shape, not its filled squares.
About this activity
Grid Perimeter: Build confidence with quantities, number relationships, and calculations.
- What to practice
- Build confidence with quantities, number relationships, and calculations.
- Controls
- Tap the controls or use Tab and Enter/Space. For movable pieces, select a piece and then its destination; supported pieces can also be dragged.
- Choosing a level
- Start with Easy. Medium and Hard extend the activity with more rounds, choices, or a larger challenge. You can change the level or restart at any time.
Big buttons and simple controls on phones, tablets, and computers.