Craft like the Colombians did in ancient times and make these line drawings out of twine, rope, or yarn.

Teach your child how to create lots and lots of line designs by wrapping string around wooden blocks, and using them to create line-filled prints.

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

Check out this interactive number line. It's a great way to strengthen your preschoolers understanding of basic numbers and the numerals that represent them.

Build this game, and give your kid some hands-on practice ordering numbers. Soon your first grade kid will be Master of the number line!

A nonet is a 9-line poem. Like haiku, each line has a specific number of syllables, starting with nine in the first line and ending with only one in the last.

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

In this activity, your child will learn and practice mindfulness by using their senses to focus on one thing at a time.

This activity will give pre-readers practice building a story. And it's silly fun, too!

Challenge your high school student to find the flaw in this short mathematical proof that one is equal to two.

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.

Encourage your child to explore her favorite fairy tale, and learn about characters, plot, setting and story sequence as she draws her own pictures.

The apparent movement of the sun has been used to keep time since the bronze age. In this science fair project, kids plot solar time against mean solar time.

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

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.

Practice plotting points on a graph when learning is wrapped up in a game. This one will help your child practice the concept of ordered pairs.

Here's a creative and engaging activity to get your child on track with that pesky little line.

Play this game to help froggie hop home...and teach the number line to your kindergartener while you're at it!

Is it a bird? Is it Superman? No, it's your third grader's homemade miniature plane zooming across the room on a zip line.

Using only straight-line sewing, your fourth can create a nifty felt pencil case perfect for his busy life.

Create a dramatic, elegant line drawing of a pumpkin in this white-on-black Halloween art project. 

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

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

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Here's a fun activity that will help your child learn to cut on a line, practice fine motor control, and create a beautiful garland, too.

This project reuses freebie magnets to make one-of-a-kind magnets for your one-of-a-kind kid!

Create some flying bats with your little one this Halloween season. This activity is a great way for your little one to learn about symmetry.

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

Creating a book is one thing, but creating a codex is a whole different ball game.