I've been the sole instrutor or course leader for courses at the University of Cape Town, University College Cork, the University of Georgia, the University of Connecticut, and the University of Utah. I have taught single and multi-variable calculus, linear algebra, ordinary differential equations, partial differential equations, abstract algebra, real analysis, complex analysis, topology, Riemannian geometry, and remedial courses.
I've prepared course notes for some of these courses, which are below. Caveat emptor!
linear algebra notes for second year students
differential equations notes for second year students: part 1, part 2, part 3, part 4, part 5
mathematics for computer science majors (slides auf deutsch): first semester (with gramatical help from Michael Tsopanopoulos), second semester coming in August 2024