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# Top Drawer Teachers: What do I know? instructions

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Top Drawer Teachers
The Australian Association of Mathematics Teachers (AAMT) Inc.
http://topdrawer.aamt.edu.au

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### Top Drawer Teachers: What do I know? instructions

1. 1. Instructions• Materials: Blank multiplication grid and two10-sided (0-9) dice per pair, coloured pencils.• In pairs, students take turns to roll the diceand generate a multiplication fact. Forexample, player A rolls (5, 3) and player B says“5 threes are 15,and 3 fives are 15”.• Player B records15 in the appropriatecells on the gridusing a colouredpencil.What do I know?
2. 2. • If a player takes along time to workout the product, it isrecorded in the cellwith a circle aroundit. If a player doesnot know then across is put in thecell.What do I know?Instructions
3. 3. • Play continues until all the cells are filled.Students can record the facts for 10 asthey cannot be generated using the dice.• Students discuss and list some of thestrategies used for the facts that weretricky to work out. For example, using 4 × 4and doubles to work out 8 × 4.What do I know?Instructions
4. 4. What do I know?Instructions