This teaching slides resource introduces repeated halving as a strategy for solving length problems, using a structured 3-step problem-solving process: Understand, Solve, and Check.
Slides begin by introducing the three problem-solving steps and what each one involves — identifying what the question is asking, choosing a strategy and solving using pictures, words, or numbers, and checking the answer using a different strategy where possible. Two worked examples are then modelled step by step, with key numbers and words highlighted and the repeated halving strategy shown visually.
What's included:
Introductory slides on the Understand, Solve, and Check framework with prompts for each step
2 worked out examples — each problem solved one step at a time using repeated halving, with a visual bar model showing each halving step and a check using doubling to verify the answer