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Approach to changing the subject of a formula. Decide. Break. Repair. Simplify. The “Decide” step. @ BerwickMaths. Decide how to get to. @ BerwickMaths. Decide how to get to. @ BerwickMaths. Decide how to get to. @ BerwickMaths. Decide how to get to. @ BerwickMaths.
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Approach to changing the subject of a formula Decide Break Repair Simplify
The “Decide” step @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Break and Repair Do you agree with the following? The last line is known as “breaking” because the calculation on the left is not equal to calculation on the right. How do I repair this mistake by altering the right hand side? Correcting the mistake is known as “repairing”.
Your turn Worked examples Make the subject of the following formulae: Make the subject of the following formulae: Simplify. Break the formula. Decide how to get from to . Repair the formula. Repair the formula. Decide how to get from to . Break the formula. Simplify. @BerwickMaths
Make the subject for each of the following formulae: @BerwickMaths
Make the subject for each of the following formulae: @BerwickMaths
The next “Decide” step @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . Square @BerwickMaths
Decide how to get to . Square root @BerwickMaths
Your turn Worked examples Make the subject of the following formulae: Make the subject of the following formulae: Simplify. Break the formula. Decide how to get from to . Repair the formula. Simplify. Break the formula. Decide how to get from to . Repair the formula. @BerwickMaths
Make the subject for each of the following formulae: @BerwickMaths
The next “Decide” step @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Your Turn Worked Example Make the subject of the following formula: Make the subject of the following formula: Break the formula. Decide how to get from to . Repair the formula. Simplify. Simplify. Decide how to get from to . Break the formula. Repair the formula. @BerwickMaths
Make the subject for each of the following formulae: @BerwickMaths
The next “Decide” step @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths
Decide how to get to . @BerwickMaths