Quick Teaching Tip for Tense Bow Hands
To help relax a student’s bow hand, try this:
Have the student setup their bow hand and place it on the D string, about a 1/4 of the way from the tip.
Then with your (the teacher) hand try to ‘dribble’ the bow on the string. If the student’s hand and arm are relaxed then the springiness and buoyancy of the stick will allow you to bounce it like a ball!