The motivation for this was the difficulty Foundation learners have with averages of grouped data, and no doubt many Higher learners too. I’ve spent years trying to demonstrate the interval in which the median lies, and watched learners who appeared to follow the method for mean of grouped data, only to watch them go to pieces on tests. So this time I went for kinaesthetic and colourful, my main aim always.
The documents are in Word so you can cut my photo if you want.
I’ve thrown in a couple of real questions, and there are plenty more about, but very easy to make up in this style.
All images (c)2015 Colin Billett
The documents are in Word so you can cut my photo if you want.
I’ve thrown in a couple of real questions, and there are plenty more about, but very easy to make up in this style.
All images (c)2015 Colin Billett
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