I will be starting a return to teaching course in January and am hoping to get some informal science lab observations (especially physics) in before then at a school other than the formal TP school. Does anyone have any links to useful 'how to observe' resources? I'm particularly interested in management of practical work, especially since things will have changed considerably with regard to H&S since I was last a teacher! PS I'm currently living abroad so don't have access to relevant bookshops, Amazon etc. so online resources would be greatly appreciated.