Other
Sieve of Eratosthenes
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...
University of Texas
Inside Mathematics: Number Trains [Pdf]
This task challenges a student to demonstrate understanding of the concepts of factors and multiples.
Teaching Treasures Publications
Teaching Treasures: Year Eight Nine Math (Page 1)
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...
University of Cambridge
University of Cambridge: Nrich: What's Left?
On this one page website sharpen your logic and factor recognition skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Grouping Goodies
On this one page website sharpen your logic and factor skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Making Sticks
On this one page website sharpen your logic, factors, and multiples skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Block Four
On this one page website sharpen your logic, factors, and multiples skills while working on this challenge. The solution is available to double check your solution.
Khan Academy
Khan Academy: Prime and Composite Numbers Intro
Discusses factors, prime and composite numbers, and why the number 1 is not prime or composite. Includes practice problems throughout, along with explanations of solutions.
Illustrative Mathematics
Illustrative Mathematics: F Le Exponential Functions
Students are shown the intersecting graphs of two exponential functions in the format of f(x) = a times b to the power of x, and are asked to explore their characteristics. They discover that the value of each function will increase by a...
Better Lesson
Better Lesson: Unit Review
What have students learned over the course of Unit 1? Students apply their knowledge of multiples, factors, order of operations, and equivalent expressions to review for the unit test.
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.
Other
Sierra College: Elementary Algebra Review Sheet and Common Formulas
This review sheet includes important rules, properties, formulas, and equations needed to solve many Algebra problems.
Scholastic
Scholastic: Study Jams! Science: Ecosystems
A video and a short multiple-choice quiz on the topic of ecosystems, covering biotic and abiotic factors, and the roles organisms play in an ecosystem.
McGraw Hill
Glencoe Biology: Community Ecology: Self Check Quiz
Answer these five multiple-choice questions about community ecology. After answers are submitted, students can review their mistakes.
Mangahigh
Mangahigh: Number: Prime Numbers
Explore factors and multiples to determine prime numbers.
University of Vienna (Austria)
University of Vienna: Elementary Properties of Numbers
Quick interactive assessment which determines skill level on fraction equivalence, prime factorization, and common divisors/multiples.
University of Calgary
Peopling North America: Theories Regarding First Migrations to the Americas
An overview of the multiple theories of the earliest migrations into North America.
Mangahigh
Mangahigh: Number: Prime Factoring
Explore prime factors and what the missing exponent could be.
Other
Better Health Channel: Identical and Fraternal Twins
The Better Health Channel of Victoria, Australia, offers information on twins. Factors that increase the odds of having twins, how different types of twins originate, possible birthing complications, and zygosity testing are covered.
Council for Economic Education
Econ Ed Link: Buying vs. Renting
This site has an introduction to the factors involved in the decision to rent or purchase housing. The site discusses space needs, lifestyle, financing options, tax benefits, and more.
Khan Academy
Khan Academy: Features of Quadratic Functions
practice these multiple-choice problems over features of quadratic functions.
Khan Academy
Khan Academy: Features of Quadratic Functions: Strategy
Practice these multiple-choice problems over features of quadratic functions.
Palomar Community College District
Waynes Word: Multiple Gene (Polygenic) Inheritance
Explains and gives examples of polygenic inheritance.
Illustrative Mathematics
Illustrative Mathematics: 4.oa the Locker Game
The purpose of this instructional task is for students to deepen their understanding of factors and multiples of whole numbers. Aligns with 4.OA.B.4.
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