Setup

How to Play

The first time you play...

1. Show the diamond and reveal all four boxes
2. See if students can find the patterns:
• The top of the diamond is the product of the side numbers
• The bottom of the diamond is the sum of the sides
3. Click the gray refresh button (or press the enter key) to get a new diamond

Once students know how to play...

1. Students work in small groups or pairs
2. Each group uses a mini whiteboard and draws a blank diamond on it
3. Load a diamond on the screen and reveal just two boxes by clicking them (or press the space bar)
• EASY: Reveal the two side boxes
• MEDIUM: Reveal one side box and either the top or bottom box
• HARD: Reveal the top and bottom box
4. The first group to show a completed diamond with four correct numbers wins
5. Refresh the page (press the enter key) for a new diamond while the students pass the whiteboard to the next student in their group (or pair partner)
6. Play again!