Other
Project Happy Child: 100s Board Worksheets
Use these 100s Boards to have students check for divisibility by 2-12 and for square and prime numbers. Just find the links below the 100s board that has the directions printed right on top of the worksheet.
The Math League
The Math League: Fractions
This tutorial covers all types of fractions with simple explanations on how to work with them.
Doina Popovici
Math Play: Prime Factorization Game
Students can practice factorization in this online game.
Doina Popovici
Math Play: Prime Factorization Game
Students can practice prime factorization in this online game that can be played individually or in teams.
Math Aids
Math Aids: Factors Worksheets
Great resource for learning and practicing fractions and their different operations. Math worksheets are printable, may be customized, and include answer keys.
University of Cambridge
University of Cambridge: Nrich: Dominoes
A set of online dominoes shows you how to work out multiplication problems.
Alabama Learning Exchange
Alex: My Favorite Number
The activity allows students to review many of the number theory concepts. Students will pick a composite number write verbal expressions about the number, find the factors, prime factorization, list multiples, draw a cartoon character...
Wolfram Research
Wolfram Math World: Pascal's Triangle
This site from MathWorld provides great information on Pascal's Triangle. Links are provided throughout for additional information, along with several helpful charts and formulas. This is a good site to check out on the subject.
Other
Greatest Common Factor/definition and Example
A walkthrough example of the discovery of the GCF of three numbers. Contains a definition as well.
Google
Google for Education: Measuring Complexity of Function or Algorithm
In this lesson, students learn how to measure the complexity of the function or algorithm in a math problem and understand how this applies to real world situations.
Cool Math
Coolmath: Pre Algebra Factorizations
Learn about "factorization" from Cool Math. Several examples and practice problems are provided.
PBS
Pbs Learning Media: Patterns of Factors
Demonstrate your grasp of patterns and factors by sorting the numbers into the correct columns. This interactive table focuses on factor pairs and prime factors for the numbers 2 to 36.
Calculator Soup
Calculator Soup: Greatest Common Factor Gcf Calculator
Calculate GCF, GCD, and HCF of a set of two or more numbers and see the work using factorization. An interactive calculator, explanations, and examples are included.
Cuemath
Cuemath: Factors
A factor of a number in math is a number that divides the given number. Factors are used in many situations in daily life. This article explains factors and how to find factors using multiplication and division. Included are solved...
Quia
Ixl Learning: Least Common Multiple
Brush up on your math skills relating to the least common multiple then try some practice problems to test your understanding.
Curated OER
Clip Art by Phillip Martin: Prime and Composite Numbers
A clipart illustration by Phillip Martin titled "Prime and Composite Numbers."
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.
Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Brincos Y Numeros
In Spanish. Find patterns with numbers less than 50. Also there is an activity to introduce the concept of multiplication.
Other
Help With Fractions: The Greatest Common Factor
Two different methods of finding the greatest common factor are explained at this one page website. It is very easy to follow the step by step directions.
University of Cambridge
University of Cambridge: Nrich: Funny Factorisation
Learning exercise deals with factors and factorization.
University of Vienna (Austria)
University of Vienna: Set of Solutions
Interactive assessment in which the solution set of an equation is found. Combines equation solving skills with set notation, introduces empty sets, intersections, subsets of real numbers (rational, integer, prime, etc.).
University of Cambridge
University of Cambridge: Nrich: Tom's Number
Use the clues Tom gives you to figure out his number. The solution is right there on this one page website.
PBS
Pbs: Greatest Common Factor
In this video, learn how to find the greatest common factor of two numbers. Then, see how this can be used to solve problems with large numbers. In the accompanying classroom activity, students learn to find prime factors using factor...
Calculator Soup
Calculator Soup: Factoring Calculator
The factoring calculator finds the factors and factor pairs of a positive or negative number. Enter an integer number to find its factors.