Play this hidden number game with your preschooler or kindergartener that will give them a leg up in learning numbers.

Does your child love learning about dinosaurs? Does he like digging around in search of hidden treasures? In this fun activity he'll do both!

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

Have your child observe, measure and record the amount of space objects occupy, and you'll have an inside space explorer on your hands in no time!

Sorting objects by size, color, shape, or function is an important concept in kindergarten math, and it's the perfect excuse for a little housekeeping!

Encourage your child to compare and contrast a wide variety of autumn-themed items by weighing various objects and recording their findings.

Take paper football to the next level by creating a "field" with objects from around the house. A great indoor and rainy-day activity.

This measurement activity uses feet to compare objects, but not the ones found on rulers and measuring sticks...the feet on your child's own body!

Lots of everyday objects can be fun, whether it's buttons, beans, or Lego blocks. Here's an activity that uses coins to build problem-solving strategies.

Strengthen your child's number recognition skills with this fun game using an old, empty egg carton!

This science fair project idea deals with the qualities of shade on a sunny day.

Use familiar household items and decorations to turn estimation into a fun game!

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Help your kindergartener review shapes - and build early reading skills - with this creative book project.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

Find the area in this fun math card game. You'll help your child start thinking in terms of units as you create shapes out of playing cards.

Counting with one-to-one correspondence is an important kindergarten math skill. This simple activity turns it into a play-anywhere game.

Invite your kindergartener to explore the bright new world of measurement by starting out with nonstandard (and tasty!) units, such as gummy bears or worms.

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

Based on the popular "I Spy" game, this activity lets your kid practice important skills like number identification and place value.

Learning to identify and categorize different geometric shapes is a big goal for early learners. And your neighborhood is the perfect place to start!

Use old coffee cans and socks to make a beanbag toss game for kids in preschool and kindergarten. This activity is great for math and coordination.

This activity is based on the popular card game, Slapjack. It's rip-roaring fun, and it reinforces the concepts of odd and even.

Practice math and social studies skills with this fun game based on the Battle of Lexington and Concord.

The project investigates the affect music has on plant growth while experimenting with rock, classical and no music.

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

Get a leg up on counting concepts with this project where art and math collide.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.