I ended up adjusting my AP Chemistry class. Instead of plowing through redox, I'm going to push it to later in the year. We did a simple acid/base titration today to practice lab skills, precision, and measurement. We'll analyze and report out tomorrow before reviewing for a test next week.
My plan is to go back and do atoms from the ground up to build context for electron transfers in reactions. I think that'll help redox click in more later in the year.