CK-12 Foundation
Ck 12: Algebra: Simplify Variable Expressions
[Free Registration/Login may be required to access all resource tools.] Simplify variable expressions involving multiple operations
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.
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.
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...
National Council of Teachers of Mathematics
Nctm: Illuminations: Product Game
The Product Game is a fun, interactive game that exercises your skill with factors and multiples.
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.
PBS
Pbs Learning Media: Harry the Substitute Teacher
Harry and his students look at various arrangements of classroom desks in this video from Cyberchase.
Sophia Learning
Sophia: Rational Factors in Decision Making: Lesson 1
At the end of this tutorial, the learner will understand that each person makes decisions based on a unique evaluation of multiple factors. It is 1 of 3 in the series titled "Rational Factors in Decision Making:."
Math Medics
S.o.s. Math: Fundamental Theorem of Algebra
This lesson takes a look at the Fundamental Theorem of Algebra. It gives information on solving multiplicity of roots and quadratic polynomials. Also gives a brief history and provides some learning exercises to practice.
Other
Brown Math: Solving Polynomial Equations
The many facets of factoring polynomials and solving polynomial equations are explained here in great detail. Taking students from basic definitions through the Descartes Rule of Signs, this is a valuable tool for math classes.
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.
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.
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.
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.
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