Although designed for grades 9-12, this site provides a helpful review (with animations) of neurons, brain chemistry, and how drugs change the way neurons communicate. (
http://science.education.nih.gov/supplements/nih2/addiction/default.htm
)
Provides teacher resources, including slides, showing how drugs affect the brain; includes material on the reward system. (
http://www.nida.nih.gov/pubs/teaching/Teaching.html
)
Provides teacher resources, including slides, showing how drugs affect functioning of the nervous system. (
http://www.nida.nih.gov/pubs/teaching/Teaching2/Teaching.html
)
Provides animations and images relating to neurobiology and the effects of drugs on the brain. (
http://www.learner.org/channel/courses/biology/units/neuro/images.html
)