You will need:
Items to create a mathematical model
pens or pencils
scissors
plain paper, grid paper or dot paper.
Transcript coming soon.
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?