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.
Texas Instruments
Texas Instruments: It's Greek to Me
Students learn Euclid's Method of finding the Greatest Common Factor of large numbers. They also review finding GCF using prime factorization and listing.
Sophia Learning
Sophia: Simplifying Radical Expressions: Lesson 5
This lesson will provide examples simplifying radical expression by applying the properties of square roots and prime factorization. It is 5 of 8 in the series titled "Simplifying Radical Expressions."
Purple Math
Purplemath: Lcm & Gcf
Purplemath shows an easy and orderly way to determine the GCF and LCM of any two numbers. Even large numbers won't be a challenge with this method.
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.
The Math League
The Math League: Fractions
This tutorial covers all types of fractions with simple explanations on how to work with them.
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.
Paul Dawkins
Paul's Online Notes: Algebra: Preliminaries: Factoring Polynomials
Detailed math tutorial features notes and examples that illustrate how to factor polynomials. It discusses factoring out the greatest common factor, factoring by grouping, factoring quadratics, and factoring polynomials with degree...
Wolfram Research
Wolfram Math World: Fermat's Theorem
This site summarizes Fermot's Theorem, there are links to related topics on the page, some prior understanding of modulus is suggested.
Wolfram Research
Wolfram Math World: Euclid's Theorems
This site from MathWorld.com provides a description of the theorems of Euclid and his theories of prime and composite numbers.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Fractions, Number Theory
Twenty problems presented on the topics: factors, prime/composite and many aspects of working with fractions. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click...
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.
Other
Stat Soft: Statistics Glossary
Dozens of statistical terms are defined and illustrated in this glossary.
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...
University of Cambridge
University of Cambridge: Nrich: Funny Factorisation
Learning exercise deals with factors and factorization.
National Council of Teachers of Mathematics
The Math Forum: Famous Problems in the History of Mathematics
On this site, there are several math problems to explore and solve. Look through some solutions by famous mathematicians and expand your thinking about some interesting math concepts. Teachers of elementary grades may want to use this...
University of St. Andrews (UK)
University of St. Andrews: Eratosthenes of Cyrene
Gives details of the accomplishments of Eratosthenes in the field of mathematics.
TED Talks
Ted: Ted Ed: Can You Solve the Fish Riddle?
In this riddle, some endangered fish species are being transported by water and a storm causes them to be thrown overboard. Your task is to devise a way to rescue them. The video provides some pointers on how to approach the problem....
Help Algebra
Help algebra.com: Fractions
This resource offers an overview of fractions from several aspects, including simplifying, reduced, mixed numbers and improper form, and basic operations. Examples and diagrams are included to help demonstrate each topic.
Wolfram Research
Wolfram Mathworld: Polynomial Factorization
This site discusses factoring of polynomials, giving a general definition, and many links to satisfy unfamiliar terminology. There are however very few examples.
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.
Texas Education Agency
Texas Gateway: Applying the Order of Operations
Given a numerical expression including whole number exponents and prime factorization, students will use the order of operations to generate an equivalent expression.
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.).
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