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Home > Stage 3 > Multiplicative relations > Doubling and halving
Suggested content:
Suggested content:
Use partitioning and place value to multiply 2-, 3- and 4-digit numbers by one-digit numbers
Use mental strategies to multiply one-digit numbers by 10, 100, 1000 and their multiples
Estimate the product of 2 numbers (one-digit by 2- or 3-digit numbers) using multiples of 10 or 100
Select and apply strategies to solve problems involving multiplication and division with whole numbers
Select and use efficient strategies to multiply whole numbers of up to 4 digits by one- and 2-digit numbers
Equipment
Equipment
Outdoor playing area
Place value discs (or similar)
6-sided dice
Spinner showing ‘double’ and ‘halve’
Something to write on/with
Activity set-up
Activity set-up
Provide each pair with a double/halve spinner.
How to play
How to play
Players in small groups or pairs double or halve 3-digit numbers with the aim of collecting the most sticks.
In pairs, students take turns to roll the dice to form a 3-digit number and spin the spinner to determine if the number has to be doubled or halved.
Students relay run to collect place value discs, or similar, to represent the number and return them to their hoop.
Play continues until the teacher blows the whistle, or times runs out.
Have teams arrange their collection. The team with the largest collection of sticks wins.
Variations
Variations
Play with smaller or larger numbers.
Play within a timeframe.
The team with the smallest collection of sticks wins.
Play with a larger dice
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