I have created a fairly simple direct and inverse proportion worksheet to use when introducing formula and substitution. eg y = kx
The sheet doesn't use the constant k when forming the formula but rather uses simple values for students to spot the multiplier easily in order to grasp the reasoning behind the formula and why it is useful. Once students understand how to create the formula, the sheet then introduces difficult values that may need the use of a calculator. I would then move onto using the terminology and symbols found in GCSE exams afterwards.
The worksheet is on a Word document and consists of 4 pages (2 direct proportion and 2 inverse proportion.)
Additionally I have included a presentation to use with the worksheet to demonstrate a couple of examples.
The sheet doesn't use the constant k when forming the formula but rather uses simple values for students to spot the multiplier easily in order to grasp the reasoning behind the formula and why it is useful. Once students understand how to create the formula, the sheet then introduces difficult values that may need the use of a calculator. I would then move onto using the terminology and symbols found in GCSE exams afterwards.
The worksheet is on a Word document and consists of 4 pages (2 direct proportion and 2 inverse proportion.)
Additionally I have included a presentation to use with the worksheet to demonstrate a couple of examples.
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