"Lightbulb moments for teachers: threshold concepts in teacher education". @HFletcherWood has done it again! Making connections between diff research areas and the offering invaluable insights. This first snippet reminds me of @dylanwiliam's EFA PD pack. improvingteaching.co.uk/2018/11/25/lig… 
This snippet brings together a creative idea to incorporate into a PD session to help the penny drop for teachers that 'memory is the residue of thought' (if you're US based, you could actually use a penny! Might make it more memorable, just ensure it's memorable in right way).
True to form were thoughtfully offered a list of limitations to an insights based approach and reminded that, just because teaching this way is hit and miss, with learning hard to measure and less than concrete outcomes, it's still powerful enough to make time for.
