# Use knowledge of balancing equations to solve problems

I can use knowledge of balancing equations to solve problems

# Use knowledge of balancing equations to solve problems

I can use knowledge of balancing equations to solve problems

## Lesson details

### Key learning points

- Knowledge of addition and subtraction can be used to solve problems involving comparing balancing expressions.
- Expressions can be formed from data in tables and graphs, and used to make comparisons.
- Expressions can be formed from data presented in tables and graphs and can be used to make comparisons.

### Common misconception

Difference can represent a rise or fall in values so the calculation can have a positive or negative answer. Difference as change is always expressed as a positive value.

Focus on finding equivalent changes in the data presented and ensure that pupils see that the change is a positive value that can be qualified with describing it as a rise or a fall, depending on the situation.

### Keywords

Expression - An expression contains one or more terms or numbers, where each term or number is separated by an operator but an expression does not have an equals sign.

### 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

## Exit quiz

### 6 Questions

90 − 55

70 − 60

55 + 60