I am out of the teaching game, but I am still interested in seeing math and cs education improved, so I am just collecting various materials in the event that someone finds them useful for either learning or teaching. Most of the materials are teaching and mathematics related at the high school or undergraduate level, but some of it is more advanced and research oriented. Some of the material is more cs related. Most of the materials are implemented in Mathematica. Finally, most of the materials are lesson sized, but I have included some larger projects as well.
Note: The content of this page and the subpages is similar to the EricksonEducation site that I maintained to showcase my and my students work at Chicago State University. While knowing almost nothing, with considerable help from a former colleague, I installed Linux, Java, Apache, Mathematica and webMathematica on an old pc. I don't remember the details exactly, but webMathematica would use Apache to serve up little flash animations using java servlets to the client browser so that you could have interactive animations. At the time it was cutting edge, as this was before the proliferation of clouds and the Wolfram cloud in particular, and also before advances in javascript/html 5 and browsers became more powerful. Unfortunately, the university would not allow the linux box through the firewall so this turned out to be useless except as a learning experience. Undaunted, I took the lemons and made lemonade and paid a kid to teach me how to make a computer in order to maximize the learning experience. I was always curious what this entailed and figured that you probably shouldn't teach computer science classes unless you have built a computer. That actually isn't really true and it turns out to be easy once you have someone telling you exactly what to do or they just do the harder parts. I then repeated the above software installation sequence and managed to serve up my site from a box in my living room after getting a stable IP from Comcast. These days it's easier to just use the Wolfram cloud, or some similar tech stack, for all of this.
I have recently resurrected my old www.ericksoneducation.org site. There is some overlap with this site but it will include a larger repository of materials for students to grab if they are so inclined. I am also resurrecting my old blog ericksoneducation.blogspot.com/ which went with this site in case I make any significant announcements about my book The Lightness Dist in STEM .