Summer School Suggestion
Faculty can also assign it or parts of it, and using the canvas system find out if students have taken the quizzes. This makes it a useful summer school prerequisite for fall classses, or you can use it or parts of it in a flipped classrom — have the students do an online unit, take the quiz, and then show up to class prepared for more advanced discussion.
More information here on my webpage, along with all the videos and notes, and lots of extra material. If you don’t want to take the quizzes, you can see the videos and notes without taking the course.