Since retiring, I have archived most of my shared course materials, including
Math and Art: Classroom materials
IBL worksheets* (as pdfs) for
Abstract Algebra (IBL worksheets that coordinate with Gallian's Algebra),
Real Analysis (IBL worksheets that coordinate with Abbott's Understanding Analysis),
and
Writing-in-Math materials:
the booklet Guide to Writing in Mathematics Classes and a checklist for grading writing projects.
*For LaTeX versions of the IBL worksheets, please contact me at the email address below.