Introduction to Integers

Drink bottles ice and thermometer
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.

Passy at Machu Pichu

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.

Positive and Negative Situations Table

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.

Intro Slideshow about Integers

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

[youtube http://www.youtube.com/watch?v=w_FQfJTPyrA&w=540&h=304]

Integers Music Videos

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

[youtube http://www.youtube.com/watch?v=ihSG9mbF3js&w=540&h=304]

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

[youtube http://www.youtube.com/watch?v=BswlX1dXL_s&w=540&h=396]

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

Related Items

Arranging Integers in Order
Adding Integers Using Number Lines
Adding Integers Using Zero Pairs
Subtracting Integers
Multiplying Integers
Dividing Integers
Integers Order of Operations
Directed Number Integers Games
Integers in the Real World
Integers in Drag Racing

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Enjoy,
Passy

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