Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

Here's a simple math activity that has your child using her basic addition facts to solve a secret code.

Learn about borrowing in subtraction using a deck of cards and a die! Your first grader will have fun playing this math game.

Using just an egg carton and some beans or pennies, you can play this game with your first grader and see real gains in core math skills.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

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.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Weave a unique ribbon pattern! This fun arts and crafts activity is a great way to make colorful projects and learn basic math and art skills.

Here's a hands-on activity that first grade use to help kids get a feel for equations. It uses popsicle sticks to practice addition and subtraction!

Want a fun way to teach your kid to tell time? Making a plate clock is a great way for him to learn how to tell time in a way he'll actually find exciting.

Ordinary drinking straws are fun for drinking juice and even for spitballs when you're not looking, but also fabulous for learning first grade math.

First graders are learning basic addition and subtraction math facts. Practice in the sandbox with this fun outdoor math activity!

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Draw some educational value out of a summer stocked full of adventures!

Try this card game to build math fact skills, like addition and subtraction, and have a great time, too!

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Compare and order numbers and introduce mathematical inequalities in this fun math card game.

This Christmas plate features your child's favorite holiday things through drawings. Make a Christmas plate with your child this holiday season.

Head out to the driveway, ball in hand, for a bouncing challenge. Then use those results to make a colorful graph that lets your child compare results.

First graders spend lots of time learning double digit numbers. Here's a "green" way to build skills and have some old time family fun, too.

Make a fun refrigerator graph with your first grader in order to help her develop those crucial graphing skills, while engaging with the whole family.

This hands-on activity practices skip counting, a key first grade math skill. But it's silly fun!

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

This fun shape game is like Twister...with a twist!

Gather the neighborhood children together and practice graphing with this backyard tournament!

In this activity, your child will create a red envelope that can be filled with money to spread good will and ward off evil spirits in the New Year.

Challenge your 1st grader to skip count with this sequence game. Help him find missing numbers by figuring out the pattern and building on math skills!