Curated OER
Greatest Common Factor
These multiples share a few factors, but which one is the greatest? Scholars list the factors for various number pairs, first just indicating common factors. Next, they do the same but write down the greatest common factor. Finally,...
Curated OER
Factors of Numbers from 31 to 65
Finding factors is an integral aspect of multiplication. Although there are two examples here, they don't illustrate the process so you will still need to model this a few times for scholars. First, mathematicians list the factors for...
Curated OER
Factors of Numbers from 1 to 30
Finding factors is an integral skill on the road to fractions and algebra. Scholars write down a factor list for nine numbers up to 30. Next, they examine provided lists and circle the numbers that are factors of eight more numbers, also...
Curated OER
Factor Pairs
This presentation covers a lot of ground. Square numbers, metal math computations, commutative property, ordering positive and negative integers, factoring, and real world problem solving are all covered. Use over the course of several...
PBS
Pbs Learning Media: Harry the Substitute Teacher
Harry and his students look at various arrangements of classroom desks in this video from Cyberchase.
Shodor Education Foundation
Shodor Interactivate: Lesson: Factors
In this instructional activity students will understand the concept of a factor, identify factors of whole numbers and explain the relationship between factors, multiplication, divisors, and division.
Khan Academy
Khan Academy: Factors and Multiples Review
Reviews what factors and multiples are and provides some problems for practice. Solutions are accompanied by explanations.
CK-12 Foundation
Ck 12: Arithmetic: Factor Pairs
[Free Registration/Login may be required to access all resource tools.] Determine the factor pairs of given numbers.
Khan Academy
Khan Academy: Factors and Multiples Intro
Explains what factors are and uses images to visualize the different factors of whole numbers. Next, discusses how to find factors without images and how to identify factor pairs. Multiples are then explained and how they relate to...
Khan Academy
Khan Academy: Factor Pairs
Practice finding factor pairs for whole numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.