I've been doing some less observations focusing on differentiation and was wondering what people's thoughts were on follow-up inset. The majority of the observations were okay, but aside from providing a list of different possible ways to differentiate, are there any proven high school approaches?

HI Seb. The Illinois link does not work either. Not sure if it is because I am over in the UK. Is it possible to email ti to me.
nialljohnson@earlscliffe.co.uk
Thanks Seb