Surely the best way to demonstrate an understanding of probabilities as area under the graph is a shaded and annotated sketch, regardless of the method used to calculate the answer.

I guess that's 5 further maths entries on the Isle of Wight then? Nothing has changed in 30 years since I was not studying it.

If those not studying maths had to take Core Maths it's not a bad idea, calculating income tax and national insurance is on the syllabus!

The numbers are pitiful as it is no longer an AS qualification. It's become a grade for A level students (mostly at selective schools) to put on their UCAS form. We have had to stop running it for students who genuinely want to stop at AS as the grade boundaries are so out of line with A level.

www.cg50.tips

This by Graeme Austin covers pretty much everything and can be filtered by spec. Mostly behind a paywall by some bits are free.

Is this allowed?

I agree, white rose is a good shout. We use their resources at post-16 with our resit students.

We look at the similarities between completing the square and a modulus function in the form a|x+b| +c. Really easy for students to find the vertex.