Hi everyone,
I’m part of a geometric algebra working group at the Physical Institute of Heidelberg University. Currently, we’re creating an introductory lecture on geometric algebra for physicists which puts an emphasis on hands-on calculations, physical intuition and interfacing traditional math and GA.
Our preliminary script is available here: Materials | Geometric Algebra for Physicists
You can find the LaTeX source code at: geometric-algebra-hd/ga-lecture: GA lecture materials - Codeberg.org
The last two chapters are unfinished so far, but the rest is pretty much done already. If anyone here has any feedback, please do let me know! Also, you’re welcome to reuse the script for your own physics lecture courses on GA - I’d be happy to get in touch to discuss the specifics 
Cheers,
Vanessa