This is a full lesson on Best Buys problem from the ratio and proportion strand of KS3 and KS4 mathematics.
It comes with my worksheet on best buys which can be bought separately or comes as part of the lesson.
This lesson covers the incredibly important idea of cost per unit mass and mass per unit cost which are often skipped by teachers as resources are not out there. Its useful for students to understand there are different ways in which to look at problems.
If you like the lesson please leave a review and check out my other lessons on my shop!
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£2.00