How do these activities relate to Cost hierarchy?

1. art and craft activities cost pool :- this can be cost pool beacuse it can under it have various other cause anf effect costs in it like paints, colors, skethbooks,learning etc.

2. learning activities:- litening to stories , learning to sing ,playing interactively with special toys.

3. conferencing with parents:- quraterly meeting with each child's parent for half an hour.

4 snack and meal activities:- teacher and food service employee praring meals . sometime students too prepare.

5 music activity:- encourages children interest in music and dance.