I'm collecting together what I hope is the most useful material that I developed to help students over the years in the hope that it will help future students, too.
I made "narrated slide" videos of the three classes I taught most often. They're still housed on the KSU server, You can play them online or download them to play later.
Although I am retired, many of the web pages I posted on the SPSU and KSU web servers are still available here. It isn't clear how long this material will remain available.