on line physics courses?

Question

I need 6 credits to keep my teaching certification valid and also need 6 credits to add physics to my chemistry certification. I am looking for a class or two not in the standard 3 course sequence because I already took those as an undergraduate. I've seen them on 'how objects work' or maybe modern physics (quantum/ cosmology?). Plus I need the courses to be on-line. The ones I come up with on google seem to be from a few years ago. Preferrably not too expensive. Am I asking too much?

Answer 1

See the reference if you are interested in education but not certification.