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.
Quia
Ixl Learning: Multiples
Brush up on your math skills relating to multiples then try some practice problems to test your understanding.
Elias Saab
Math Drills: Lcm and Gcd Quiz
An interactive quiz which provides students with two numbers and asks them to find either the Least Common Multiple or the Greatest Common Divisor between them. Students input their solution and have the program evaluate it. Hints are...
Goodwill
Gcf Global: Basic Skills
Intimidated by computers? New to email and the Internet? Curious about operating systems and online safety? We've got the information you need to better understand computers and how they work. This is a landing page that has multiple...
Goodwill
Gcf Global: Sharing and Collaborating on Files
Google Drive makes sharing files simple. It also allows multiple people to edit the same file, allowing for real-time collaboration. Watch a video to learn more about these features. Includes examples and exercises. [2:58]
Other
Sieve of Eratosthenes
Named after the Greek Mathematician. This classic method of finding prime numbers is also great for teaching about factors and multiples. The visnos sieve allows for multi colored squares this allows identification of any numbers prime...
University of Texas
Inside Mathematics: Number Trains [Pdf]
This task challenges a student to demonstrate understanding of the concepts of factors and multiples.
Math Slice
Math Slice: Least Common Multiple: Math Worksheets
This tool allows you to create worksheets where students must find the lowest common factor in a set of two to four whole numbers.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Greatest Common Factors, Least Common Multiples
Math Forum response to request for info on how to find greatest common factors, and how this compares to least common multiples. Explanation includes examples of each.
McGraw Hill
Glencoe Online: Abiotic Factors
Take this 8 question check quiz on abiotic factors. The quiz is multiple choice.
University of Waterloo (Canada)
University of Waterloo: Cemc: Math Circles: Number Theory Ii [Pdf]
This worksheet provides a series of problem-solving questions that require higher order thinking skills. Questions will include finding the greatest common divisor, and least common multiple.
McGraw Hill
Glencoe: Self Check Chapter Test Fractions and Decimals
Students are assessed on fractions and decimals. Topics include greatest common factor, improper fractions, and fractions as decimals. The self-checking test includes hints and solutions.
Goodwill
Gcf Global: Reciprocals and Inverse Numbers
Read this tutorial to learn about reciprocal and inverse numbers and how they work.
PBS
Pbs Learning Media: Pizza Toppings
This Cyberchase video features Bianca who uses Venn Diagrams to make a pizza that satisfies the topping preferences of her friends.
Mangahigh
Mangahigh: Number: Prime Numbers
Explore factors and multiples to determine prime numbers.
University of Cambridge
University of Cambridge: Nrich: Making Sticks
On this one page website sharpen your logic, factors, and multiples skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Block Four
On this one page website sharpen your logic, factors, and multiples skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: What's Left?
On this one page website sharpen your logic and factor recognition skills while working on this challenge. The solution is available to double check your solution.
Sophia Learning
Sophia: Zeros and Their Multiplicities: Lesson 4
This lesson demonstrates how to use factoring to find the zeros of a polynomial function, and explains how to tell if a particular zero occurs more than once. It is 4 of 6 in the series titled "Zeros and Their Multiplicities."
Sophia Learning
Sophia: Zeros and Their Multiplicities: Lesson 3
This lesson demonstrates how to use factoring to find the zeros of a polynomial function, and explains how to tell if a particular zero occurs more than once. It is 3 of 6 in the series titled "Zeros and Their Multiplicities."
AdLit
Ad lit.org: Dropout Risk Factors and Exemplary Programs
Dropout decisions may involve up to 25 significant factors, ranging from parenthood to learning disabilities. The most effective interventions address the various factors and employ multiple strategies, including personal asset building,...
Illustrative Mathematics
Illustrative Mathematics: 4.oa the Locker Game
The purpose of this instructional task is for students to deepen their understanding of factors and multiples of whole numbers. Aligns with 4.OA.B.4.
National Council of Teachers of Mathematics
Nctm: Illuminations: Product Game
The Product Game is a fun, interactive game that exercises your skill with factors and multiples.
Better Lesson
Better Lesson: Investigating the Properties!
In this instructional activity, 4th graders will investigate and discuss the familiarity with factors and multiples to gain a deeper understanding. Downloadable printables are included.
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