In this simple and social activity, children use size comparison skills to find objects in nature that are bigger, smaller, longer, and shorter.

This do-it-anywhere guessing game helps reinforce number concepts. And it's a blast to play.

This very physical game gets math off the page and into the real world-- and it works on number sense and estimation, key skills for kindergarten readiness.

Help your preschooler grasp the concept of ordering and sequence while teaching him valuable vocabulary with simple activities around the house.

Forget the measuring stick! This fun math activity uses a body part, your child's hand, as a ruler.

Challenge your preschooler to a game of shape match-up--an entertaining way to boost her observational ability.

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

The Kindergarten Personal Record Book makes measurement fun & active! Kids record their vital statistics from head to toe using unusual tools like paper clips.