This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Trying to find sums of groups of multiples is a great way to practice your addition. Be sure to double check your work. If you clear all of the cards, you win!

Check out this simple version of a pairs game that's played all over the world. It's a great way to practice estimating and predicting mathematical outcomes.

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

Play tic-tac-toe and help your kid memorize multiplication facts!

Thanksgiving placemats are a great craft for your kid, and a beautiful addition to the dinner table. Make Thanksgiving placemats with your kid for the holiday.

Probability can be a tough concept to master. Try playing this fun card game in order to help your third grader understand it a little better.

Help your second grader to a better understanding of how to count and represent money with age old game of tic-tac-toe.

Work on measurement by sliding cards along a table with your second grader in this fun game. Use centimeters or inches, add up your totals, and see who's won!

Okay, engaging in a graphing activity may sound ho-hum, but if you use fun data, it changes the picture entirely.

Help your child sharpen time skills by creating a special day and charting each part in a detailed schedule.

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!

If your 2nd grade child asks for time often, encourage him to read time on his own by talking about time throughout the day.

Delay your child's sugar overload, and develop his critical thinking skills, by doing some "sweet sorting" of his Halloween treasures!

Help your child practice multiplication tables with this mental and physical multitasking game that uses a hula hoop to get into the swing of things.

Have your kid practice completing number patterns and then create her own patterns on the wings of a butterfly with this delightfully simple paper project.

Making decorative pottery is a great way to experiment with making patterns and texture on a traditionally smooth surface.

Invite your second grader to help you measure and mix these fresh, cool concoctions!

Give your child some practice with even numbers, while creating a cute Christmas keepsake. Create this skip counting book.

Give your smart second grader a rich challenge with this activity that combines graphing practice with money!

Do you think heat can affect a plant's growth rate?

Most timeline activities are all about history. Make timelines more relevant and personal for your child by focusing on the hours and minutes of his day.

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

Time is an abstract concept that's difficult to grasp. But waiting for the turkey to come out of the oven on Thanksgiving is a concretely yummy experience.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

Here's a place mat your second grader can create, based on the classic frontier tradition of patchwork quilting.

Here's a super fun game to get in some place value practice with your child!

How powerful is the reaction between baking soda and vinegar? Find out here!

Get estimating with this spooky activity that asks your young mathematician to rely on their problem-solving skills to figure out how many items they believe are in spooky Halloween jars!

Have your student draft a blueprint for a haunted house, and trick (or treat) them into learning about geometry in the process.