Early years / early learning concepts

Which makes it easier to lift a large toy-a wedge or wheels and axles?

Is it easier to move ice with a lever or a screw?

Is it easier to lift a bag full of toys with an inclined plane or a pulley?

These kids are playing a game, trying to move a person with a simple machine.

Is it easier to move heavy box with an inclined plane or wheels and axles?

Nothing is going right on the Planet of Time!

Everybody barfs.

Now that Ginger Fox and her mother are living with the Badgers, life just isn't the same.

How should we handle our money?

How should we handle our money?

How should we handle our money?

How should we handle our money?

How should we handle our money?

How should we handle our money?

Have you ever built a cool science project?

Have you ever wondered how the universe began?

Keeping up with all of hockey's cool facts can make your brain freeze.

It is easy to spend money when you have a credit card or a loan.

Making your money grow over time is easier than you might think.

Most people earn income by working at jobs.

People spend money on food, fashion, and fun.

How did our knowledge of matter, gravity, and electricity develop over time?

Let's count from 1 to 10 with Israeli food and fun!

Learn what a Siberian tiger has in common with an elk.

Learn what a mountain gorilla has in common with a hippopotamus.

Discover what a grizzly bear has in common with a jaguar.

Find out what a gray wolf has in common with a red fox or an African lion.

Find out what an African elephant has in common with a wildebeest.

After the 1986 Chernobyl nuclear explosion in Ukraine, scientists believed radiation had created a vast and barren wasteland in which life could never resurface.

It's fun to jump in puddles in spring, eat ice cream in summer, pick apples in fall, and build snowmen in winter.

Does the universe circle around Earth?

To play professional hockey, you need plenty of grit and determination-it's a physically and emotionally punishing job.

Robots help us understand our universe.

Young readers will learn how vibrations make sound that we can hear in this accessible, photo-filled book.

Young readers will learn how we use our senses to see light and hear sound in this accessible, photo-filled book.

Young readers will learn how we send and receive messages using light and sound in this accessible, photo-filled book.

Young readers will learn how shadows are made with light in this accessible, photo-filled book.

Young readers will learn how colors are made in this accessible, photo-filled book.

Young readers will learn how light works and where it comes from in this accessible, photo-filled book.

Rescued from an animal shelter on the first night of Hanukkah, Latke has trouble learning the house rules.

Nothing is going right on the Planet of Time!

Everybody barfs.

The very funny Brian P.

What would you be if your finger bones grew so long that they reached your feet?

In this humorous look at shapes, Brian P.

The author and illustrator of the best-selling Words Are CATegorical(R) series brings their trademark sense of humor to the subject of subtraction.

In this wacky look at weight, Brian P.

Brian Cleary and Brian Gable bring their trademark sense of humor to the subject of measuring length.

In this playful look at patterns, Brian P.

The zany CATegorical cats introduce the measurement of time, from seconds, minutes, and hours up to decades.