# Use efficient strategies to solve problems

I can use efficient strategies to solve addition and subtraction problems.

# Use efficient strategies to solve problems

I can use efficient strategies to solve addition and subtraction problems.

## Lesson details

### Key learning points

- Known facts can be used to help us solve equations and problems efficiently.
- Numbers can be partitioned to bridge ten to help us work efficiently.
- When equations are solved, it is important to choose a strategy that allows you to solve the problem efficiently.

### Common misconception

When faced with problems, children may revert to using inefficient counting strategies instead of more efficient calculation strategies.

Record equation required to solve a problem, then explicitly discuss the most efficient strategy to solve it, drawing on prior knowledge and strategies such as use of known facts and the bridge ten strategy.

### Keywords

Strategy - A method used to solve a problem or equation.

Data - Another word for information.

Bar chart - A graphical display of data using bars of different heights; another name for a bar graphs.

### Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

## Video

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## Starter quiz

### 6 Questions

7

17

27

37

47