Doubling and halving
A number talk
Collect resources
Collect resources
You will need:
Items to create a mathematical model
pens or pencils
scissors
plain paper, grid paper or dot paper.
Watch the video to see what to do.
Watch the video to see what to do.
Transcript
Transcript
Transcript coming soon.
Discuss/reflect
Discuss/reflect
Create a mathematical model to show how you could use doubling and halving to solve 6 x 8. You could use grid paper, dot paper, or even draw a comic strip!
Find 3 examples where doubling and halving isn't an efficient strategy.
Why is it more efficient for some problems and not for others?