Doina Popovici
Math Play: Rational and Irrational Numbers Game
An interactive game where students have to determine whether a number is a rational or a irrational number.
Sophia Learning
Sophia: Multiplying Rationals: Lesson 2
This lesson demonstrates how to multiply rational numbers using algebraic notation. It is 2 of 6 in the series titled "Multiplying Rationals."
Sophia Learning
Sophia: Representing Rational Numbers Using Variables: Lesson 2
This lesson demonstrates how to represent rational numbers using variables. It is 2 of 9 in the series titled "Representing Rational Numbers Using Variables."
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Terminating & Repeating Decimals
Find a quick, concise explanation of both terminating and repeating decimals. An example of each is given and clearly explained.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Rational Numbers
Find a quick, concise explanation of rational numbers. Examples are given and clearly explained.
Free Math Help
Free Math Help: Algebra Lesson: Rational Numbers
Learners examine the set of real numbers. The resource includes detailed explanations about rational and irrational numbers. It provides example problems.
Math Is Fun
Math Is Fun: Surds
Do you know what a "surd" is? It's a type of irrational number. The resource consists of examples as well as a brief origin of the term "surd."
ClassFlow
Class Flow: Rational and Irrational Numbers
[Free Registration/Login Required] By the end of the lesson, students will classify numbers into number families to help understand how to distinguish the difference between rational and irrational numbers. Students will demonstrate this...
Purple Math
Purplemath: Number Types
This site explores the different types of numbers: natural numbers, whole numbers, integers, and rational and irrational numbers. Content includes some practice questions.
Education Place
Houghton Mifflin: Eduplace: Lesson Plan: What Is It? Rational Numbers
This site is a great place for lesson information on the concept of rational numbers. Three other tabs are available besides the-What Is It? tab. They are Tips and Tricks, When Students Ask, and Lesson Ideas. Each tab has just the right...
University of Utah
University of Utah: The Number System
This site from The University of Utah provides a definition of commonly used numbers including rational numbers, natural numbers, integers, real and complex numbers and more.
Wikimedia
Wikipedia: Rational Numbers
Learn the definition of rational numbers. You can also look at some examples and properties, plus learn about Egyptian fractions. Links are provided for additional information.