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How to Make a Number Line for the Classroom

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A number line is a pictorial representation of real numbers. It is most commonly used in elementary math classes to help students compare numbers and perform arithmetic operations like addition, subtraction, division and multiplication.

Can You Ace This Math Vocabulary Quiz?

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Do you think you are a mathematician vocabulary connoisseur? When is the last time you tested your math vocabulary? Take this quick quiz and put your math vocabulary to the test. You might be surprised at what you get!

What Kind of Number Am I?

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Everything in the universe comes down to numbers. There's a baffling mathematical symmetry to everything no matter how disorganized and chaotic it is. Numbers lie at the center of everything! But what numbers? Take the quiz and see what ones you know!

What Is a Perfect Square?

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A perfect square is a number, but it can also be explained using an actual square.

How Corrective Lenses Work

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Eyeglasses are one of the most common sights in the world. Learn what goes into creating the lenses and how to read an eyeglass prescription.

Can You Recognize Every Letter of the Alphabet in Cursive?

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Has it been so long since you've seen cursive that you've lost your touch? Take a look at these letters and see if you remember what they are! Will you know as many as you would have known in elementary school?

How Boolean Logic Works

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Boolean logic lies at the heart of the digital revolution. Find out all about Boolean gates and how by combining them you can create any digital component!

How 8 Queens Works

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The 8 Queens problem will test your puzzle-solving mettle. Learn about the 8 Queens puzzle in this article.

How Transistors Work

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The transistor moved the world from power-hungry vacuum tubes to portable solid-state electronics. Learn about transistors and how they changed electronics.

How 4D Printing Works

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Is 4D printing much different from 3-D printing? What if we told you some tech insiders are betting it has the potential to change industries from fashion to health care to defense?

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