- Cut out a cardboard shape and pierce a small hole in the center.
- Tie one end of a string to the doorknob of your child's room and thread the opposite end of the string through the shape's hole.
- Have your child stand across the room holding and shaking the free end of the string.
- See how long it takes her to shake the shape from one end to the other.
Copyright © 1998 by Patricia Kuffner. Excerpted from The Preschooler's Busy Book with permission of its publisher, Meadowbrook Press.
To order this book visit Meadowbrook Press.