Introduction to Integers

Image Source: http://www.odec.ca

Integers are positive and negative WHOLE numbers.

Decimals and Fractions are not “Integers”.

Zero is an Integer, but it is neither positive or negative.

Typical integers are:

-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5

Often the positive sign is left off positive integers.

Eg. 4 is the same as +4

Zero never has a positive or a negative sign on it.

Examples of Integers in the real world are:

-5 degrees below zero is a negative integer.

+4000 meters above sea level on a mountain is a positive integer.

The Inca ruins of Machu Pichu in Peru are located on a mountain that is 3800 meters above sea level.

Positive and Negative Situations

Integers are often called “Directed Numbers” because they indicate how big, as well as in what direction.

Direction is often down or up, or left and right.

The following table will help you determine whether the situation in a word problem should be represented as a “Negative” or a “Positive” number.

Integers Slide Show

The following slide show will take you through the basics of Integers.

Click anywhere on the image below to open this presentation in a new window.

Here is a YouTube about Integers that covers some of the basics.

Integers Music Videos

This music video gives a brief look at Integers in the Real World.

Let’s finish up with an Integers Rap song from YouTube.

Hope you’re feeling positive about the work we will be doing with Integers!

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