A few links for my University of York Lifelong Learning course:
The 1st lecture – 2012_GHB_Lect1
British Geological Survey – free “Climate Through Time” poster (Click here)
British Geological Survey – Open Geoscience resources (Click here)
Woodcock & Strachan (2012) Geological History of Britain & Ireland (Click here for the Student Companion site)
Geology Rocks – Tutorials on regional geology (Click here)
In Our Time, BBC Radio 4 – “The Geological Formation of Britain” (Click here)
And if you need mnemonics to help you remember the periods of geological time, I have produced some suggestions here.