Competitors go head-to-head only this time it's a race to figure out the lowest common multiple of two numbers; an important step to working with fractions!

Familiarize your preschooler with the concept of numbers one through five and counting with this hands-on activity.

Does your preschooler like cereal? Explore numbers with everyday objects and food with this fun counting activity.

Here's a hands-on way to help your child understand how common fractions can be equivalent.

Do this fun activity that uses stickers to help your kindergartener with counting, basic addition, and one-to-one correspondence.

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

Salmonella and E.coli are common food contaminates. This experiment measures the time it takes for E.coli and Salmonella to reach hazardous levels in fish.

One way to "trick" your child into getting extra practice with one-step equations is to play a variation of the classic game, tic tac toe.

Create a graph based on the interests of family member's to see who has what in common. Your child will practice her math skills and get to know the family!

In kindergarten, your child spent lots of time counting things one by one. But in first grade, he'll need to be able to count in groups, especially by fives.

Put together a pine forest to help you count down the days until Christmas with your little one.

Try this recipe with your child and explore Ethiopia through one of its dietary staples: injera, or flat bread!

Race to double numbers in this competitive card game. Try one-digit or two-digit numbers, or more!

In this activity, your child will learn to name the numbers from 1 through 5 and she'll practice her grouping skills.

In this activity your little one will throw a beanbag at a numbered target to help improve their number recognition skills.

Got a shoelace? Got a kindergartener? Help your child learn to use the number line by creating one out of a lace.

For most second graders, a good secret code is just about irresistible. Here's one that builds math facts while you're at it!

Get your preschooler ready for kindergarten by helping them learn numbers 1-10 with homemade snowflake counting cards in this arts and crafts activity.

Create a counting book, in order from 1-30, to help your child figure out a variety of ways of recognizing and representing numbers.

This Hanukkah countdown craft will help your little one count the eight nights of Hanukkah. Make a Hanukkah countdown calendar with your child.

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

Looking for a cool game to help your first grader learn her 11s? Look no further than this clever one-person card game.

Help your child apply his math skills the next time you cook a family meal similar to one you'd buy at a restaurant.

This unique Santa is made only from circles. Your little one will have a fantastic time puzzling together Santa's face with this circle-centric activity.

First grade math includes lots of work with two-digit numbers. Here's an activity to help kids practice recognizing and sequencing numbers from 1-30.

Create some cards and a factor board and get ready to practice multiplication. This game will help your kid get one step closer to memorizing times tables!

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Help your kindergartener practice counting from one to ten with this fun outdoor activity. Make a "My Backyard Counting Book" to review counting to ten.

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.