A pleasant Friday, all things being equal. I went full on guerrilla teacher today as both kids joined me in the same room and in the kitchen while I was cooking to cover areas of physics, plant biology, chemistry and maths.

My son had one of his mates text him about the SOHCAHTOA work of the day before (same problem layout, different values, which is an interesting randomisation of questions to prevent one answer fits all) and he brought it over to do while under supervision to check...