# Length · l-reserve

**Show one idea at a time.**

MODEL paper flag starts at 8 cm and ends at 26 cm on a labelled ruler. Strip A is 16 cm; strip B is 22 cm. A job needs at least 20 cm. These are supplied readings, not measured classroom objects.

Usual communication, exact scribing, private/untimed response, rest or pause are welcome. An adult may read/describe all source facts neutrally, without choosing your maths or giving answers. These supplied models do not establish real measuring.

## 1. Choose a useful unit and tool for the length of a small paper flag. Explain why.

Own response: [empty before your attempt]

## 2. How long is the flag? Show how the two readings help.

Own response: [empty before your attempt]

## 3. Which strip meets the job, and how much spare length does it give?

Own response: [empty before your attempt]

## 4. Explain one way to check the flag reading on a real safe ruler if an adult approves. What cannot the paper answer show?

Own response: [empty before your attempt]

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