Checking the GCE AS and A Level Subject Content for Mathematics we see the following on the use of technology:
Maths & Further Maths Technology by Content
or pdf format: Maths & Further Maths Technology by Content
This file is very much a work in progress; I have created an Excel version of the A Level Mathematics (age 16-18) subject content. This means it is easy to add notes and/or links to resources. Currently, there are several links to ClassWhizz Calculator instructions and videos. Links have also been given to other resources.
I will be adding to this in the coming weeks and also over the next year, teaching the A Level content of the new specifications for the first time. More technology resources will be added by topic.
Will Hornby, OCR Mathematics Subject Advisor, has written very clearly on calculators for Mathematics A Levels in this post.
For excellent advice on the use of Technology, see these MEI pages. Note MEI’s comprehensive guidance with ideas for integrating Technology which I think will be useful whichever examination board you are using.
You can find an excellent calculator guide for the Casio FX991EX-ClassWiz on Dr Frost’s site.