SWBAT use strategies to identify rational numbers on a number line.
The number line is a useful tool when ordering positive and negative rational numbers.
The number line is a useful tool to use when ordering rational numbers.
Preparing for a test requires lots of practice and this review will help students show what they know about how to use a number line.
What do students understand? What gaps do they have in their understanding?
Recall the definitions of four different sets of numbers. This interactive illustration focuses on displaying counting numbers, integers, rational numbers, and real numbers on a number line, providing the opportunity to visualize number sets in multiple ways.
Given a set of numbers, learn how to tell which are rational and which are irrational. [2:17]
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Write an inequality to compare absolute values. Order numbers written in absolute value form from least to greatest. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
This task can be used to either build or assess initial understandings related to rational approximations of irrational numbers.
Standard 8.NS.1 requires students to "convert a decimal expansion which repeats eventually into a rational number." Despite this choice of wording, the numbers in this task are rational numbers regardless of choice of representation. For example, 0.333 and 1/3 are two different ways of representing the same number.
Students learn how to use division and place value to convert fractions to decimals. [1:54]
In this short Cyberchase video, students learn about positive and negative numbers as Harry tries to score a total of 50 points in various events to qualify for the Northern Hemisphere games in New Orleans. [3:24]
This lesson compares rational number and orders them from least to greatest using the number line. [Developmental Math playlist: Lesson 132 of 196]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
This video lesson demonstrates long division of a two-digit number by a one-digit number, where the answer will contain a repeating decimal. It is 1 of 10 in the series titled "Dividing Two-Digit Numbers by One-Digit Numbers Repeating." Includes short multiple-choice quiz. [2:07]
This video lesson demonstrates long division of a two-digit number by a one-digit number, where the answer will contain a repeating decimal. It is 4 of 10 in the series titled "Dividing Two Digit Numbers by One Digit Numbers Repeating." Includes short multiple-choice quiz. [2:28]
This video demonstrates division of two-digit numbers by two- or three-digit numbers. This lesson is 1 of 19 in the series titled "Dividing Two-Digit Numbers by Two or Three-Digit Numbers." Includes short multiple-choice quiz. [4:19]
Demonstrates how to compute with positive and negative fractions and compare the answers. [5:59]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Learners examine the set of real numbers. The resource includes detailed explanations about rational and irrational numbers. It provides example problems.
This site, which is provided for by the University of St. Andrews, gives information on the German mathematician Cantor.
Get independent practice adding and subtracting rational numbers. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.