Educational: Mathematics, science and technology, general

They're big.

They're big.

For decades teachers and parents have accepted the judgment that some students just aren't good at math.

Now you can discover the answers to these and many other fascinating questions about engineering for yourself with this fun-filled resource.

There's plenty for you to choose from in this collection of forty terrific science project ideas from real kids, chosen by well-known children's science writer Janice VanCleave.

Learn how to easily do quick mental math calculations Speed Math for Kids is your guide to becoming a math genius--even if you have struggled with math in the past.

This unique resource provides 190 high-interest, ready-to-use activities to help students master basic math skills including whole numbers, decimals, fractions, percentages, money concepts, geometry and measurement, charts and graphs, and pre-algebra for use with students of varying ability levels.

Inquiry Science encourages students in grades 4-5 to explore, discover, explain, and understand science!

Inquiry Science encourages students in grades 2-3 to explore, discover, explain, and understand science!

Test with success using Spectrum Science for grade 5!

Passing the State Science Proficiency Tests presents essential content for elementary and middle school teachers who want to improve their science content background, enhance their classroom instruction, or pass the state science proficiency tests.

This is the first comprehensive text on African Mathematics that can be used to address some of the problematic issues in this area.

As in previous books in this critically acclaimed series, Brynie polled hundreds of high school students across the country to find out what they wanted to know most about blood and circulation.

Cada mes un ciclo ocurre en el cielo.

Los lectores principiantes aprenderán sobre los patrones básicos del Sol y la Tierra y lo que causa día y noche.

Whether kids are just learning about outer space or have been dazzled by the mysteries of space for a long time, they will have fun making the simple crafts in this book.

A furry dog.

Salty popcorn.

The sweet smell of roses.

A green frog.

A fire alarm's wail.

A leaf is a leaf, a bit of a tree.

Congratulations, crocodilian parents-to-be!

Dotty, stripy, straight and swirly-patterns are all around us.

How does a tadpole become a frog?

How does a foal grow into a horse?

How does an egg become a butterfly?

Twelve-year-old Clyde Tombaugh stepped up and took his first look through a telescope.

Young children usually think of their home as the structure in which they live.

Emery J.

What's that funny feeling coming from your gut?

Have an itch?

Your mouth really is filthy!

From snot and phlegm to earwax and eye gunk, there's some pretty gross stuff in that body of yours!

Have you ever crashed your bike and torn up your knee?

Americans are divided over the future of the U.

Once embraced only by environmentalists and "e;health nuts,"e; the organic agriculture movement is flourishing in the United States.

In this fun-filled look at fractions, Brian P.

Earth has a water problem.

Earth has a pollution problem.

Earth has a litter problem.

We use electricity and other types of energy every day.

On Earth Day, we find ways to help the Earth.

We all throw away too much stuff!

What's longer than a football field, weighs more than 450 cars, yet flies miles above Earth's surface?

How long does it take to get into outer space?

How can robots help us explore space?

Could there be other planets in the universe similar to those in our solar system?

Have objects from space ever hit Earth?

What space objects can have millions of times more mass than our Sun, but they remain invisible?