We have moved to using the White Rose schemes of learning this year. In the current unit on place value, I was surprised to see the inclusion of Range and Median as Small Steps in their guidance. But when I thought about it more, it makes perfect sense. Separate these similar ideas from mean and mode. Both these require students to write a list of numbers in ascending order, which has been covered a couple of steps previously, so they get more practice. We then move on to ordering decimals, so we can come back to range and median in that context, and again later when we hit negative numbers.
But when I was looking for some tasks for students to do to practice these skills beyond the worksheets that White Rose provide, I realised nearly all resources either cover just one, or the whole mixture of averages. So I went ahead and adapted a few resources to fit what we have covered.
The first is a set of questions that I put together to try to get students thinking about what it means when the data set changes and only one of the median or range changes. It is meant to lead them towards the idea that both a measure of position (median) and spread (range) are necessary when looking at data.
The second is a More Less Same grid (check out this website for more).
The third and forth are a pair of Maths Venns tasks.
The final is an Open Middle style problem.
The PowerPoint file that contains all 5 is here.
I am a maths teacher looking to share good ideas for use in the classroom, with a current interest in integrating educational research into my practice.