Starter quiz
- Look at . Inside each bracket you can see matching __________.
- equations
- expressions ✓
- formulas
- answers
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- Which of the below is equivalent to ?
- ✓
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- Expand
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- ✓
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- Which of the below are equivalent to ?
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- ✓
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- ✓
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- Expand and simplify
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- ✓
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- Match the expressions to the correct first step when expanding before simpifying.
- ⇔✓
- ⇔✓
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Exit quiz
- When you write as you have __________ the expression.
- solved
- simplified ✓
- expanded
- factorised
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- Use this bar model to help you simplify the expression
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- ✓
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- Which of the below cannot be simplified before it is expanded?
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- ✓
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- Match each expression with a simplified expression.
- ⇔✓
- ⇔✓
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- Which of the below is true for ?
- and are not matching expressions so you can not simplify.
- You have to expand first before simplifying.
- Matching multipliers means you can simplify before expanding. ✓
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- Match each expression with a simplified expression.
- ⇔✓
- ⇔✓
- ⇔✓
- ⇔✓
- ⇔✓
Worksheet
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Presentation
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Lesson Details
Key learning points
- Collecting together like terms simplifies the expression.
- Simplifying may be possible before multiplication.
Common misconception
2(z+7)+3(z+7)+5(z+7) must be expanded first before simplifying.
Think of 'Unitising'. What is it we are adding together? In this case, we are summing multiples of (z+7). How many lots do we have?
Keywords
Term - A term is single number or letter, or the product of numbers and/or variables. Each term is separated by the operators + and –
Expression - An expression contains one or more terms where each term is separated by an operator.
+