Chinese Learning group with Inter school Chi teacher

Hi, I am a Chinese teacher in an International school and my son, 3 years old, studies in the kindergarten in my school.
Although he speaks Putonghua with us at home, he tends to speak more English now. I am afraid that he can't have the same progress in Chi as in Eng.
So I am planning a study group for 4 kids together.
Games, songs, physical activities will be planned for them to learn PTH with fun and the most important is I am going to ask them to keep writing when they are 4 keep the writing and reading part.

I am thinking about another boy and 2 girls.
If interested, please pm me.

Right now, the class is 1 hr each week. Sat or Sun.

Thanks.

Some intro to myself.