Missing Angle: I have, Who has...?

A set of 30 cards. Each card contains a missing angle within a right angle that needs to be calculated.

How to play:
1.Distribute one card to each student, then distribute the extras to strong students in the beginning and to random students as the class becomes more familiar with the deck.

1. As you distribute the cards, encourage students to begin thinking about what the missing angle on their card might be so that they are prepared to answer. When all cards are distributed, select any student to begin (cards will look back to beginning player). Play continues until the game loops back to the original card.

2. After the class is comfortable with this game format, consider using a stopwatch to time the class game. Record the time on the board so that students try each game to beat their current best time. This practice encourages students to stay attentive.

Other ways to play:
•Spread the cards out on the table – children place the cards in the right order (in a group/pair/individually).