This is a whole lesson on interpolation with a worksheet. UPDATED, 18 slides.
A starter activity, that links into why use interpolation and what it is for and then a simple, but clear example of how to use interpolation to work out the median. A further activity linking back understanding to the starter and a couple of key question to assess/check understanding. For further practice, I have either been using the worksheet included, which is a bunch of tables to use for practice or past paper exam questions or both. It includes ANSWERS and a plenary.
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