Based in San Francisco, the Exploratorium was founded by the famous physicist and educator Dr Frank Oppenheiner, who remained the director until his death in 1985.

I’ll be visiting the site again, and again and probably again; it’s got to great stuff on there.

However, today I’m interested in the After School section, which “brings hands on activities and digital library resources into afterschool play”.

There are well presented instructional videos telling you how to create the activity, how to engage children in the activity, and how to vary things and investigate the results.