A new site is under construction to be used by students for support of their expeditions. They can access this site, The Springfield Renaissance Library at home and at school.
Please let me know if you need anything topic organized for your students to use.
Research tip: Wolfram Alpha now has various apps.
This image is Copyleft (not copyright) thanks to By tit_toinou (Animation d’une figure GeoGebra 4) [GFDL ], via Wikimedia Commons