Jovan
As you know, there is an open call for feedback and suggestions on Kiddie Craft. Let's use this thread to post comments/feedback. I just received a chat message from a user who wishes to stay anonomous.
In Lesson III-9, at about 1 min, hand hanging with wrist in neutral position is great - so much easier to feel the flexor. This exercise can be done off the chair and kneeling for those who are able.