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

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!

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

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

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.

Encourage your child to take a page from Bridget Riley and the op art movement, and see if she can create an optical illusion in her artwork.

Construct and experiment with a periscope using reflected light rays to gather an image.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

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. 

Take a fun and simple look at the concept of parallel lines with your child. This art activity is great for fine motor skills and perfect for Valentine's Day!

Bring the crisscrossing lines of highways and the sprawling webs of metropolitan cities to your dinner table!

Make a beautiful bowl out of printed lines of poetry that you can use to store everything from jewelery to candy.

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

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

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.

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

Vincent van Gogh painted golden hued pictures of the harvest using bold lines and vibrant color. Your child can explore this style of art using oil pastels.

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!

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.

Sure, angles can be confusing. Here's a fun activity to brush up your child's knowledge of these geometry essentials.

Don't despair if numerators and denominators seem like a bore to your child. This colorful collage is sure to show him the brighter side of fractions.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

Most of us are familiar with haiku, but the tanka is an even older form of Japanese poetry. Learn to write a tanka poem with this activity.

Transform a paper coffee cup into an adorable Easter bunny gift basket in this second grade arts and crafts activity.

Holiday greeting cards let your child express his holiday cheer and have fun crafting. Make a set of holiday greeting cards with your kid this holiday season.

This fun craft will teach your child a little bit about the human skeletal system and can be adapted to teach the biology of many different living animals.

this mosaic-inspired activity uses kid-friendly yarn and glue to help your kindergarten kid design her own vibrant, brightly-colored flower.

This game provides your child with the opportunity to create, write, and read numbers.

Help your child create an autumn poem full of colorful sensory details.