05 / Number-line strategies

Can different jumps reach the same destination?

Compare individual steps and decomposition through a benchmark.

Learning purpose

Connect a starting number, an operation and a destination through valid jumps.

A linked representation

Number-line strategies

Connect a starting number, an operation and a destination through valid jumps.

The complete worked example below is available independently of the model.

Worked example / Readable without the model

Keep the relationship in view.

Start at 8 and add 7. Seven jumps of one reach 15. A jump of two to 10 followed by a jump of five also reaches 15.

Prepare for the exploration.

Begin with the stated example. Connect the controls to the representation and explanation; ask what changed and what stayed the same.

Use the representation thoughtfully.

The model is an explanatory aid. It does not assess a learner or establish that a teaching approach will suit every situation.

Connected to practice.

The mathematical activity relates to the documented themes of early mathematics and teacher support. It is a new website explanation, not a previously published tool attributed to Dr Sako.

Explore the relevant professional work