Learn about irrational numbers with this easy reference guide. Provides a detailed definition and examples that enhance further explanation. Provides links to related topics.

[Free Registration/Login may be required to access all resource tools.] Classify real numbers as rational numbers, whole numbers, integers, and irrational numbers.

[Free Registration/Login may be required to access all resource tools.] Compare and order rational numbers on a number line and by using inequality symbols

[Free Registration/Login may be required to access all resource tools.] In this lesson students learn to simplify and order rational numbers. Students examine guided notes, review guided practice, watch instructional videos and attempt...

At this site from Wikipedia you can learn the definition of an irrational number, then look at examples and explanations of why some numbers are irrational and others are not.

During this lesson, learners will learn why numbers are rational or irrational. Rational numbers are numbers that can be written in the form a/b. Irrational numbers cannot be expressed in the form a/b, where a and b are integers.

Print or create worksheets to assess students' understanding of radicals, square roots, and irrational numbers.

Get independent practice working with real numbers. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.

Practice classifying numbers as whole, integer, rational, and irrational. Students receive immediate feedback and have the opportunity to try questions repeatedly, to watch a video, or ask for a hint.

This site gives an overview of rational numbers, gives interesting facts about the rational numbers including countability and probability of a rational numbers denominator being even. The site also contains related links.

Casual and clear but definitely upper-level discussion of rational, real, imaginary, and several other types of numbers. Links to related sites.

This site explores the different types of numbers: natural numbers, whole numbers, integers, and rational and irrational numbers. Content includes some practice questions.

[Free Registration/Login may be required to access all resource tools.] Find approximate solutions to equations involving irrational numbers.

A proof to show that the square root of two is an irrational number, followed by a shorter and even more beautiful proof.

Math Forum response providing methods to prove that between any two numbers there exist a rational and an irrational number.

In this module you will learn about rational and irrational numbers.

[Free Registration/Login may be required to access all resource tools.] Recognize and identify irrational numbers and the set of real numbers

[Free Registration/Login may be required to access all resource tools.] Understand, identify and find equivalent forms of rational numbers

Discusses what numbers are and how our understanding of them has evolved over thousands of years, from simple counting to negative numbers and irrational numbers, for example. Includes a set of practice questions where students identify...

Find a quick, concise explanation of Real Numbers. Other number systems are also defined such as: Natural, Integer, Rational, Irrational and Complex Numbers.

Resource defines numbers into two main categories, counting numbers and scalars. It also gives examples of number notation.

Math Forum response considering whether an irrational number taken to an irrational power yields a rational or irrational number. Responses include a method of generating irrational #s x & y such that x^y is rational.

This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...

This math site explains what it means for a number to be irrational and names various persons who have proven the irrationality of some numbers, the site also gives several numbers who are thought to be irrational yet have not been...