More forthcoming on teaching, in general, and the teaching of writing, in particular.
For now, here’s a favorite resource:
Assay | assayjournal.com
Assay: A Journal of Nonfiction Studies does not focus exclusively on pedagogy, but they do a great job aggregating resources for teaching nonfiction writing. Check out their In the Classroom page for syllabi, favorite essays to teach, writers to read, reading lists, and statements of teaching philosophy.