I have been tutoring English for over two years now (as a freelancer), and recently, at my new job, my boss recommended that I take this course to build up my resume so that parents have more trust in me. Overall, the course helped me reorganize and add structure to several of the skills I have learned through experience, as well as helping me identify and navigate through some blind spots in my teaching approaches. I've already tried testing some of the tips while taking the course (such as occasionally using short animation clips, or more kinaesthetic methods) in my 1-1 sessions with students and it has been a more fun and engaging experience for the both of us!
I would suggest perhaps adding a demo lesson video at the end of the course, that highlights the skills being demonstrated at each particular point. Having the 'whole picture' could help some learners connect the dots more easily and ease the nerves of teaching their first lesson! It could be just one video, or a couple of videos demonstrating some different teaching styles for different types of students.