Due to the not yet developed finger muscle and muscle memory not yet imprint, the shape of the playing finders are not in arch shape yet.
Solution : using Hanon, practice each bar slowly and with repetition in correct way.
Hei Hei is s quite boy, like to draw teacher’s attention. Today he asks me to look at his drawings on the drawing pad, last time he wanted to show me his cute dolls (his friends since baby time). The praise or scold effect by teacher in him is big. Need to be careful when dealing with this.