In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

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

Engage your third-grader in this version of the classic game and she will get lots of practice using mental math to solve addition and subtraction problems.

Help your third grader create a Venn diagram fantasy creature by combining two different creatures to create a fantasy creature based on their similarities.

Does your child need counting help? Here's a simple game that kids can do at home to help them practice counting to two-digit numbers.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Sharing can be a challenge, and division doubly so! Practice halving numbers in this competitive card game.

Create homemade seed packets with your kids. This activity combines your kids' love of science and the outdoors with a little writing and drawing fun.

Practice math and measurement with your third grader this Fourth of July by making these festive cupcakes!

Practice multiplication facts by playing baseball in this fun, third grade math board game.

Practice conversions within the metric system in this fun math card game for third graders.

This fun math card game is a great opportunity to discuss probability with your third grader.

Practice multiplication facts and geography at the same time in this fun third grade math card game.

Show your third grader how to string together a pretty, decorative harp.

Try this fun math card game with your third grader to practice division, addition, and problem solving!

If your third grader is having difficulty sequencing events in a story, try creating this book square.

This game reinforces the meaning of the term "multiples" and is fast enough to hold the attention of your fourth-grader.

Challenge your third grader and a few friends to teamwork and laughs with these boisterous indoor Christmas games.

In this high energy, interactive game, third graders are challenged to race, involving spelling patterns in words.

Play this fun basketball game to help your third grader master their multiplication tables.

Help your third grader learn time zones with this fun map activity!

This writing activity to get your third grader to combine the fun of poetry with the excitement of celebrating a birthday.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Practice third and fourth grade measurement skills and make a practical holiday gift in the process!

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Teach your third grader about the concepts money and purchasing with this "Mock Card Shop" activity.

Challenge your third-grader to sharpen her new math skills--and maybe do the planet a favor, too.

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

Multiplication facts are a necessary skill, and this board game provides a fun way for your third grader to practice them!