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Grouping Shapes by Parallel and Perpendicular Sides

Grouping Shapes by Parallel and Perpendicular Sides

Which shapes go together based on parallel and perpendicular lines?

Game: Number Scrabble

Game: Number Scrabble

What if we played Tic-Tac-Toe with numbers and instead of three-in-a-row, we add up to 15? Well… then we’d have Number Scrabble!

Math Game: Heaps

Math Game: Heaps

Try this a simple (but surprisingly strategic) subtraction game!

What’s In My Brain: Trapezoids or Not?

What’s In My Brain: Trapezoids or Not?

Which are trapezoids and which are not?

Notice, Wonder: Climber

Notice, Wonder: Climber

A mysterious image. Reveal it slowly. Let your students wonder!

Bulls and Cows

Bulls and Cows

How quickly can you break the numeric code?

Dots and Boxes

Dots and Boxes

Who can make the most boxes from dots in this strategy game?

Grouping Quadrilaterals In A Hierarchy

Grouping Quadrilaterals In A Hierarchy

Can we classify quadrilaterals like we classify living things?

How to Play Go

How to Play Go

Ready to learn a 2,500-year-old Chinese board game? Let’s… Go!