Welcome: An Introduction to Real Numbers
Description: By exploring this WebQuest, you will know the definition of a "rational" number, and what you can expect when rational numbers are added, subtracted, multiplied, and divided from one another. All numbers belong to a "number system". In this number system, we have "real numbers" which is just any number that can be plotted on a number line. Within the real numbers we have "rational numbers", which is any number that can be written as a fraction like 1/3, 12/4, or 0.2. Next, we have "integers" which are positive and negative numbers like 2 and -2, 4 and -4, etc. Then, there are "whole numbers" which start at zero and continue: 0, 1, 2, 3, 4, 5.... Lastly, we have "natural numbers", which are all of the counting numbers (NOT zero): 1, 2, 3, 4, 5... Watch the short video in the "Attachments" section to help you remember all of the types of real numbers!
Grade Level: 6-8
Keywords: positive numbers, negative numbers, rational numbers, number system, 7th grade math
Author(s): Morgan West