The lesson on the Nervous system was pretty popular as I had a surprise for the Piwis. We talked about the the senses and the nervous system with some reading, copy work and some website research.
Learning resources Brain model I had got from amazon during the amazing toy sales at Christmas time. This product is awesome. It gives kids a great idea of the fragility of the brain and while not an accurate size it does make you realise the density and how much is packed into this amazing organ. The cross section is very clearly labelled with letters and color coding which you can then use with the manual to find the name of the area and what it does.