Article
Mocomi & Anibrain Digital Technologies

Mocomi: What Are Factors and Multiples?

For Students 2nd - 8th Standards
Explores factors and multiples and the difference between them.
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Elias Saab

Math Drills: Lcm and Gcd Quiz

For Students 9th - 10th Standards
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...
Interactive
Goodwill

Gcf Global: Basic Skills

For Students 9th - 10th
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...
Unit Plan
Goodwill

Gcf Global: Sharing and Collaborating on Files

For Students 9th - 10th
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]
Whiteboard
SMART Technologies

Smart: Factors and Multiples

For Teachers 3rd - 6th Standards
Students are introduced to prime numbers, composite numbers, prime factorization, greatest common factor, and least common multiple in this SMART whiteboard activity.
Activity
Math Slice

Math Slice: Least Common Multiple: Math Worksheets

For Students 3rd - 5th Standards
This tool allows you to create worksheets where students must find the lowest common factor in a set of two to four whole numbers.
Activity
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Greatest Common Factors, Least Common Multiples

For Students 9th - 10th
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.
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McGraw Hill

Glencoe Online: Abiotic Factors

For Students 6th - 8th
Take this 8 question check quiz on abiotic factors. The quiz is multiple choice.
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University of Waterloo (Canada)

University of Waterloo: Cemc: Math Circles: Number Theory Ii [Pdf]

For Teachers 9th - 10th
This learning exercise 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.
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McGraw Hill

Glencoe: Self Check Chapter Test Fractions and Decimals

For Students 5th - 6th
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.
Unit Plan
Goodwill

Gcf Global: Reciprocals and Inverse Numbers

For Students 9th - 10th
Read this tutorial to learn about reciprocal and inverse numbers and how they work.
Interactive
Other

Sieve of Eratosthenes

For Students 4th - 5th Standards
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...
Lesson Plan
University of Texas

Inside Mathematics: Number Trains [Pdf]

For Teachers 3rd - 5th Standards
This task challenges a student to demonstrate understanding of the concepts of factors and multiples.
PPT
Sophia Learning

Sophia: Zeros and Their Multiplicities: Lesson 4

For Students 9th - 10th
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."
Unit Plan
Sophia Learning

Sophia: Zeros and Their Multiplicities: Lesson 3

For Students 9th - 10th
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."
Professional Doc
AdLit

Ad lit.org: Dropout Risk Factors and Exemplary Programs

For Teachers 9th - 10th
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,...
Interactive
Mangahigh

Mangahigh: Number: Prime Numbers

For Students 5th - 7th
Explore factors and multiples to determine prime numbers.
Interactive
Mangahigh

Mangahigh: Number: Prime Factoring

For Students 5th - 8th
Explore prime factors and what the missing exponent could be.
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McGraw Hill

Mc Graw Hill Ryerson: Abiotic and Biotic Environments

For Students 9th - 10th
Take this ten question quiz on abiotic and biotic environments. The quiz is multiple choice.
Activity
Teaching Treasures Publications

Teaching Treasures: Year Eight Nine Math (Page 1)

For Students 9th - 10th
Review a variety of number sense skills using this interactive worksheet. Concepts include greatest common factor, lowest common multiple, rounding to the nearest thousandth, and determining percent. Answers can be checked immediately...
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Math Aids

Math Aids: Factors Worksheets

For Students K - 1st
Great resource for learning and practicing fractions and their different operations. Math worksheets are printable, may be customized, and include answer keys.
Activity
Texas Instruments

Texas Instruments: Oliver's Method

For Teachers 6th - 8th Standards
Students discover a relationship between the Greatest Common Factor (GCF) and the Least Common Multiple (LCM) of two numbers. Students will find and justify the relationship that the product of two numbers is equal to the product of the...
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Graphing Calculator Practice Problems Number Theory

For Students 9th - 10th Standards
Practice using your graphing calculator for number theory problems, including prime factorization, greatest common factor, least common multiple, and scientific notation. If you get stumped or if you would like to check your work, then...
Handout
Paul Dawkins

Paul's Online Notes: Algebra: Zeroes/roots of Polynomials

For Students 9th - 10th Standards
Learn about the root or zero of a polynomial with this reference guide. Includes definitions, step-by-step instructions on how to find all the zeroes for a given polynomial, and multiple examples. Also included is a description of The...

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