Curated OER
Fraction Addition and Subtraction
Students learn skills necessary for adding or subtracting fractions.
Curated OER
Majority Rules
Students practice the voting process by taking a group vote using fractions or percents. In this voting process lesson plan, students review the voting process and vote using hands or a private ballot. Students tally the responses to the...
Alabama Learning Exchange
Action at Plate Boundaries
Students diagram the spreading of the ocean floor. In this earth science lesson plan, students read an article on plate boundaries of the ocean. Students are expected to diagram the oceanic convergent boundary, and...
Curated OER
Shadow Trackers: From Photography to Writing
Students explore the rotation of the earth. In this science lesson, students view photos of various places around the world. Students conduct an experiment in which they can see how the earth's rotation creates shadows on the earth.
University of Regina (Canada)
University of Regina: Math Central: Greatest Common Divisor and Least Common Multiple
Learn about the greatest common divisor, the least common multiple, and the Euclidean Algorithm. This resource gives a description of each of these concepts, accompanied by several examples.
McGraw Hill
Glencoe: Self Check Quizzes 1 Least Common Multiples
Use Glencoe's randomly generated self-checking quiz to test your knowledge of how to find the least common multiple. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the...
CK-12 Foundation
Ck 12: Elem Math: Finding Least Common Multiples Lcm
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems involving least common multiples.
CK-12 Foundation
Ck 12: Elem Math: Solving Time Problems With Lcm
[Free Registration/Login may be required to access all resource tools.] In this learning module, students solve word problems involving time and a least common multiple (LCM). A video shows how to solve a sample problem where a clock...
AAA Math
Aaa Math: Least Common Multiple
This tutorial offers an explanation of least common multiples, practice finding them and a game to play. There is a lot of information available at this location.
Scholastic
Scholastic: Study Jams! Math: Fractions: Least Common Multiples
Complete a step by step problem to solve for the least common multiple.
Math Is Fun
Math Is Fun: Least Common Multiple Tool
A simple tool that you can use to find the least common multiple (LCM) of two or three numbers.
Khan Academy
Khan Academy: Least Common Multiple
Find the lcm (least common multiple) of pairs of integers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
McGraw Hill
Glencoe: Self Check Quizzes 2 Least Common Multiple
Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of finding the least common multiple. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page...
Quia
Ixl Learning: Least Common Multiple
Brush up on your math skills relating to the least common multiple then try some practice problems to test your understanding.
Other
Help With Fractions: Finding the Least Common Multiple
This website gives an excellent explanation of how to find the least common multiple. It offers two different methods and gives easy to follow step by step directions.
Discovery Education
Discovery Education: Web Math: Find the Least Common Multiple of Some Numbers
Use this site to find the Least Common Multiple (LCM) of any set of numbers. Simply type in your numbers, and the site will provide the answer complete with a full explanation.
George Mason University
Margo Mankus: Investigating Lcm and Gcf Using Rods
This lesson plan is for an activity using rods (Cuisenaire Bars) to help students understand the concept of factors, in particular the LCM and GCF of two numbers.
Khan Academy
Khan Academy: Gcf & Lcm Word Problems
Solve word problems where you either need to find the GCF or LCM. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Mathigon
Mathigon: Math Foundations: Divisibility and Prime: Least Common Multiples
This lesson features practical applications for finding the least common multiples.
Khan Academy
Khan Academy: Least Common Multiple
In this exercise, students practice finding least common multiple. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Math Planet
Math Planet: Finding the Least Common Multiple
Gain an understanding of the least common multiple by viewing an example and a video lesson.
Shmoop University
Shmoop: Basic Operations: Lcm & Gcf
Students learn about the least common multiple and the greatest common factor. The resource consists of notes, step-by-step examples, and practice problems with solutions.
Other
Help With Fractions: Least Common Denominator
The rules for finding the least common denominator are clearly explained at this website. Two different methods are given. This is an excellent place to get step by step explanations for working with fractions.
CK-12 Foundation
Ck 12: Elem Math: Comparing Fractions Using Lcm Word Problems
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to compare fractions in word problems and determine which is bigger or smaller. Includes video demonstrating a sample...