My idea - Each child decorate a hand and attach it to the big tree. (Make paper hand cutouts from your children's hands. Write things they are thankful for on the hands and you will build your own thankful tree!
PRESCHOOL Set up a simple fine motor activity to work on letter recognition. This letter matching activity can be set up various ways depending on your child's skill level: alphabetical order, uppercase/ lowercase letter recognition, sequencing, etc!