Explain how to balance equations with addition expressions
I can explain how to balance equations with addition expressions.
Explain how to balance equations with addition expressions
I can explain how to balance equations with addition expressions.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- If one addend is increased and the other is decreased by the same amount, the sum stays the same.
- If one addend is increased or decreased then the sum increases or decreases by the same amount.
Keywords
Unknown - An unknown is a quantity that has a set value but it is represented by a symbol or letter.
Equation - An equation is used to show that one number, calculation or expression is equal to another.
Expression - An expression contains one or more values, where each value is separated by an operator.
Common misconception
Pupils immediately calculate expressions instead of considering the relationship between expressions.
Take time to model interrogation of values within expressions, identifying relationships between them. Encourage this reasoning and show how it can be more efficient than calculation especially in situations with larger values.
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).
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