Year 9 - Maths
Solar power
Maths and the environment
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Unit Summary
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Lesson Summary
You will learn to consider the implications of installing solar panels.
Key Notes
- The size of a property determines how many solar panels can be installed
- The amount of energy generated depends on the a variety of factors
- It is possible to calculate when solar panels have paid for themselves
Vocabulary To Learn
- Variable: A variable is a quantity that can take on a range of values.
- Formula: A formula is a rule linking sets of physical variables in context.
- Average: An average is a single number expressing the central or typical value in a set of data: the mode; the median; and the mean.
Common Mistakes To Avoid
- When calculating the amount of electricity produced by a solar panel, pupils may forget to convert its power rating from watts to kilowatts.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
The size of a property determines how many solar panels can be installed. The amount of energy generated depends on the a variety of factors.
2. Use this key word in a maths sentence and explain it clearly. 'Variable'
A variable is a quantity that can take on a range of values. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: When calculating the amount of electricity produced by a solar panel, pupils may forget to convert its power rating from watts to kilowatts. Correction: Always check whether the units for any values given in the informatin match the units that are required for the formula.
More Lessons In This Unit
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