Increasing Cognitive Load at A Level

I mentioned a couple of weeks ago during #mathsTLP that I sometimes adapt multi-step A Level exam questions by converting them in to a single question to challenge my students. As I used 4 of these yesterday for an FP1 revision session I thought I’d share them. 

They are all taken from Edexcel FP1 exams and the file is available here and the first page is shown below:

  

Students do seem to find these a lot harder, but most enjoy doing them even when I reveal that I could have given them a much easier question where they are stepped through the process. I think there should be more questions like this on exams (though I guess they would be harder to mark) as they stretch the pupils more, and test their ability to make suitable choices of approach. 

Does anyone else do anything similar?

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