Oh man Tyke would be so hard! I can only coach kids who have an understanding already I don't think I would do well with starting from scratch. Reffing Tyke was always hilarious though because they all run around in a pack to get the ball you will have a blast!
At that age really just have to focus on scooping the ball and passing and shooting. Here is a good site to browse
http://cla.pointstreaksites.com/file...ill_Cards_.pdf