The internet has a lot of resources to supplement your classes. The following is a list of potentially useful resources. 

Physlets :

MIT Open Courseware :

MinutePhysics :

Adam Beatty :

Brant Carlson :

Michel van Biezen :

Professor Dave Explains :

Eugene Khutoryansky :

Pradeep Kshetrapal :

Let there be math :

Crash Course Physics :

Disclaimer: The University of Colorado Physics Department did not create these resources. Our sharing the links is not an endorsement of the quality of these resources.