EngageNY
Least Common Multiple and Greatest Common Factor
Find the common denominator between prime factors, factor trees, and the distributive property. Scholars learn to find the least common multiple and greatest common factor of pairs of numbers. They rotate through stations to connect...
Illustrative Mathematics
Multiples and Common Multiples
Learners are asked to find multiples and common multiples of two numbers. They must take their findings and find a pattern between the numbers and explain their reasoning. Use this resource with The Florist Shop activity in this series...
Texas Instruments
Greatest Common Divisor and Least Common Multiple
Students solve problems using the GCD and LCM. In this algebra lesson, students factor and simplify equations using the greatest common and least common factors and multiples. They factor integers in pairs.
Illustrative Mathematics
Listing Fractions in Increasing Size
Increase the depth of your class's fractional number sense with this number-ordering activity. Given four fractions, each with different numerators and denominators, young learners are asked to place them in order from smallest to...
West Contra Costa Unified School District
Lowest Common Multiple through the Grades
The LCM will be your new BFF. Learners review least common multiple and least common denominator applications, mostly on fractions, from middle school. Scholars then see how the LCM can be applied to various types of problems from...
Illustrative Mathematics
The Florist Shop
A real-world approach to common multiples asks learners to find different groups of flowers based on their multiples. Useable as a class activity or independent exercise, they will have to organize their thoughts to explain the totals of...
Curated OER
Paper Pool
Students explore ratio and proportion, GCF, and LCM. In this middle school mathematics lesson plan, students play an interactive Paper Pool game that provides an opportunity to increase their understanding or ratio, proportion, GCF, and...
Curated OER
Common Multiples
Students explore the concept of common multiples. In this common multiple lesson, students find the lowest common multiple of two numbers.
Curated OER
Finding the Least Common Multiple
In this math worksheet, students learn to find the least common multiple and rewrite fractions with common denominators. There are step by step directions and 10 problems.
Curated OER
Finding the LCM
Students explore the concept of finding the least common multiple of two numbers. In this least common multiple instructional activity, students find the least common multiple of two numbers.
Curated OER
Playing the LCM Game
Students practice finding the least common multiple of two numbers. In this practice finding the least common multiple of two numbers lesson, students play head-to-head against their classmates. Students play a version of 'slap jack'...
Curated OER
Finding The LCM
Students find the least common multiple. In this LCM lesson, students find the multiples of two numbers. They view which multiples are common between the two numbers and then find the smallest.
Curated OER
Reduction to Common Denominator
Students compare two fractions with different denominators. In this fractions lesson plan, students find the least common multiple in order to find a common denominator with two fractions. Once they have a common denominator, they...
Curated OER
Fractions in Action
Investigate equivalent fractions with your class. They compare and order fractions. Then they work cooperatively in groups to experiment and problem solve with fractions using a game format. Multiple resources are provided.
Curated OER
Adding Fractions with Unlike Denominators
Students practice solving addition problems of fractions with unlike denominators and discover how to apply the lowest common multiple to solve problems. After completing practice problems, they review least common multiple and apply it...
Curated OER
Mighty Multiples
Students study about multiples, common multiples, least common multiples, and lowest common denominators. They recognize that a multiple is the product resulting when two or more factors are multiplied by each other and that common...
Curated OER
Rational Equations and Proportions
In this rational equations worksheet, students solve and complete 11 various types of problems. First, they find a number that is the reciprocal of one described in each statement. Then, students solve for the variable in each expression.
Curated OER
Comparing and Ordering Fractions and Mixed Numbers
In this mathematics worksheet, 5th graders find the least common denominator of each fraction. Then they write equivalent fractions using the LCD and compare the numerators of the new fractions.
Curated OER
Adding and Subtracting Fractions
In this adding and subtracting fractions worksheet, learners solve 5 sets of problems related to the adding and subtracting of fractions. First, they identify that each fraction has a common denominator and then simplify by adding or...
Curated OER
Factor Fun for Fifth Graders
Fifth graders explore common factors. In this factorization activity, 5th graders discover the greatest common factor among two numbers in a game format. Students build on previous knowledge to determine the greatest common factor.
Silver Burdett Ginn
Study Buddies: Adding And Subtracting Fractions With Unlike Denominators
Pair up your math pals to teach each other about adding and subtracting uncommon denominator fractions! Step-by-step instructions are provided as well as five practice problems.
Illustrative Mathematics
Plastic Building Blocks
Let's build a castle! Dennis and Cody have big plans, but do they have enough blocks between the two of them to accomplish their goal? A great context that requires students to add and compare mixed numbers. Encourage the use of pictures...
Curated OER
Solar Electricity ~ The Colour Sensitivity of a Photovoltaic Cell
Teacher's notes, a materials list, detailed procedure, tips, and extension ideas are all included to make teaching this lesson on photovoltaic cells a sunny spot in your day! After some brief background reading, physical science...
Curated OER
Mathematics: Domino Theory
Sixth graders use dominos and plastic chips to study common denominators and fractions. They describe how these operations are related to each other.