The rest of your questions to me have been answered already, but you asked about recoveries and why I separate ground handling and takeoffs. Nose up stalls, low speed stalls, and from inverted are the big recoveries everyone needs to know. They are all easy to do but newbies can have some needless crashes simply because they don't know what to do. The reason I separate ground handling and takeoffs is because one builds on the other. Maybe I should have called it taxiing the plane instead of ground handling. The idea is to drive the plane around on the ground without taking off, maintaining control the whole time. It teaches basic rudder use and builds precision. Adding in some blips of throttle gets the pilot used to managing the effects of torque, which will happen when you teach takeoffs. It also will give the student a feel for how the plane acts on the ground at different speeds. I know you're using a Super Cub to teach with so ground handling isn't exactly a complicated topic with those, but there is still something to be learned by putting the plane exactly where it needs to be on the ground using the rudder to steer it.