In the latest video from my 'Topics in Depth' project, Craig Barton and I discuss this surprising curriculum decision. We also examine how exact trig values are assessed at GCSE, and we take a look at both pedagogy and resources.
If you're a maths teacher with a spare hour, please watch this! If you enjoy it, also check out Area in Depth and Surds in Depth. Thank you to AQA for sponsoring these videos.