A Level things often poorly (or not) explained in textbooks: Why the binomial coefficients are nCr The determinant of a 3x3 matrix Repeated brackets in partial fractions Any others people can think of & how you explain them? @Whitehughes Margaret Anthony Dr Frost Jo Morgan Stuart Price

A Level Maths: What proportion of lesson time is spent on pupils doing problem solving/investigating versus simply doing practice questions? (Ignore things like e.g. feeding back on homework/tests) Stuart Price Emily Rae Rob Southern Sam Blatherwick @Whitehughes Dr Frost

Before I begin this, does anyone know if someone has already mapped previous STEP questions to relevant parts of the A Level Maths/FM course? Amanda Austin Emily Rae Rob Southern Jemma Sherwood @tombutton.bsky.social Sam Blatherwick @Whitehughes Dr Frost Stuart Price Jo Morgan

A while back there was a discussion about the two methods of transforming in roots of polynomials. There were some good examples of where substituting wouldn't work, I think for non-linear transformations. Does anyone have a link? @Whitehughes Stuart Price might have been involved?

A Level Maths - What grade boundaries (if any) do you use for internal assessments that are NOT a complete set of public exam papers and why? Stuart Price BMaths @Whitehughes Sam Blatherwick Jemma Sherwood Rob Southern Hannah Emily Rae

I've struggled to find an interesting, meaningful use for A Level vectors since the equation of a line went to FM, but quantum computer-resistant encryption methods may make use of them. 2D example easy to visualise - probably a worksheet to be made here! youtu.be/-UrdExQW0cs?t=…

Changing A Level Exam board. Is there a document somewhere highlighting all the differences in content between Pearson/AQA/OCR for A Level Maths? Jo Morgan Stuart Price @Whitehughes Sam Blatherwick BMaths Jemma Sherwood (@jemmaths27 on Threads) Dr Frost Emily Rae