Visual Fractions
Visual Fractions: Rename in Lowest Terms
Practice finding the lowest term name for a variety of different fractions using a number line.
Shodor Education Foundation
Shodor Interactivate: Lesson: Factors
In this lesson learners will understand the concept of a factor, identify factors of whole numbers and explain the relationship between factors, multiplication, divisors, and division.
Shodor Education Foundation
Shodor Interactivate: Factorize 2
The resource consists of student notes, instructor notes, and an interactive activity. The activity allows learners to find the factors of a given number and then draw the product as the area of a rectangle on a grid.
Texas Instruments
Texas Instruments: Divisibility Rules! Using Scientific Calculators
Concepts and skills covered in this activity include number theory, divisibility rules, multiples, factors, and problem-solving skills.
Texas Instruments
Texas Instruments: An Introduction to Derive
In this activity, students use the Derive software to algebraically solve expressions, find factors, study binomial coefficients, and investigate derivatives and integrals.
Math Is Fun
Math Is Fun: All Factors of a Number
Great tool that will find all factors of a number, not just the prime factors.
Math Medics
S.o.s. Math: Factoring: Some Special Cases
In this lesson, special cases of factoring are described, including perfect squares, difference of squares, and difference and sum of cubes. Exercises with answers included.
University of Glasgow
Steps Glossary: Statistics Factors
This site provides a general definition of the factors of a statistical experiment.
Cut the Knot
Cut the Knot: Lattice Multiplication
Have you heard of the 13th century mathematician, Leondardo Fibonacci? See examples of his concept of a lattice multiplication algorithm. Several example problems, including an interactive one where students can change the factors, are...
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Find the Factor [Pdf]
Determine the factor that makes the statement true.
United Nations
Unesco: Math Games (In Arabic)
This site offers games and lessons that teach basic math concepts such as area and volume, number patterns, time, etc. Games use familiar tasks such as shopping to reinforce math concepts. While the title of each page includes an English...
Math.com
Math.com: Greatest Common Factor/practice Calculator
A page which generates number pairs and allows the user to find and enter the GCF. Keeps a running tally of correct/incorrect answers and has links to in depth review, if needed.
McGraw Hill
Glencoe Mathematics: Online Study Tools: Factors and Fractions
Students show comprehension of basic arithmetic skills. The online test assesses scholars on factors and fractions. Topics include simplifying fractions, finding the greatest common factor, and evaluating expressions.
University of Cambridge
University of Cambridge: Maths and Sports: Medal Muddle
Can you work out which order these thirteen nations finished in after competing? This activity presents an exercise in strategic thinking, accessible to lower secondary students (but hinting at the more advanced mathematics of sorting...
University of Cambridge
University of Cambridge: Maths and Sports: Going for Gold
Looking at the 2008 Olympic Medal table, can you see how the data is organised? Could the results be presented differently to give another nation the top place? This activity encourages children to develop their skills in data analysis,...
University of Cambridge
University of Cambridge: Maths and Sports: Half Time
What could the half-time scores have been in these Olympic hockey matches? This activity encourages systematic working and discussion, and is designed to be accessible to primary pupils at Key Stages 1 and 2.
Illustrative Mathematics
Illustrative Mathematics: Picturing Factors in Different Orders
The purpose of this task is to help students picture the multiplicative structure of the number 30 in different ways. Some of this structure is easier to communicate using grouping symbols, as it is easier to interpret...
Mangahigh
Mangahigh: Number: Factors and Multiples
List factor pairs to determine all factors and multiples of a number.
Mangahigh
Mangahigh: Number: Least Common Multiple and Greatest Common Factor
This site provides students practice with the concept of least common multiples and greatest common factors. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to...
Mangahigh
Mangahigh: Number: Find Prime Factors
Test your knowledge of prime factors of two-digit numbers.
CK-12 Foundation
Ck 12: Geometry: Number Patterns
[Free Registration/Login may be required to access all resource tools.] Look for patterns in order to solve problems with greatest common factors.
CK-12 Foundation
Ck 12: Algebra: Guess and Check, Work Backward
[Free Registration/Login may be required to access all resource tools.] Solve word problems using the guess, check, and revise strategy.
CK-12 Foundation
Ck 12: Algebra: Distributive Property to Evaluate Formulas With Decimals
[Free Registration/Login may be required to access all resource tools.] Evaluate formulas with decimal quantities using the distributive property.