Handout
Help Algebra

Help algebra.com: Properties of Real Numbers

For Students 9th - 10th
Both additive and multiplicative properties of real numbers are presented on this page. An example demonstrates the distributive property.
Activity
Shodor Education Foundation

Shodor Interactivate: Identity Properties

For Students 3rd - 8th
The resource consists of a discussion between a mentor and two students about how to use additive and multiplicative identity and inverse properties. Examples and explanations of each are included.
Activity
Texas Instruments

Texas Instruments: Determinants and Inverse Matrices

For Teachers 9th - 10th Standards
In these questions, students are asked to find the determinant and the inverse of four 2 x 2 matrices. These multiple choice questions have solutions provided.
Handout
Other

Sierra College: Elementary Algebra Review Sheet and Common Formulas

For Students 9th - 10th
This review sheet includes important rules, properties, formulas, and equations needed to solve many Algebra problems.
Unknown Type
Illustrative Mathematics

Illustrative Mathematics: 4.oa Comparing Growth, Variation 1

For Teachers 3rd - 5th Standards
The purpose of this task is to foster a classroom discussion that will highlight the difference between multiplicative and additive reasoning. Aligns with CCSS.Math.Content.4.OA.A.1 Interpret a multiplication equation as a comparison
Website
Lumen Learning

Lumen: Boundless Algebra: Inverse and Composite Functions

For Students 9th - 10th
The resource discusses the topic of function composition. Includes multiple examples and a quiz on this topic.
Unknown Type
Illustrative Mathematics

Illustrative Mathematics: 4.nbt Millions and Billions of People

For Teachers 3rd - 5th Standards
The purpose of this task is to help students understand the multiplicative relationship between commonly used large numbers (thousands and millions) by using their understanding of place value. Aligns with 4.NBT.A.1.
Lesson Plan
Better Lesson

Better Lesson: Area of a Room: Basic Practice

For Teachers 3rd Standards
Creating rooms with different dimensions but the same area improves understanding of multiplicative principles.
Unknown Type
Oswego City School District

Regents Exam Prep Center: More Practice With Properties of Real Numbers

For Students 9th - 10th
How well do you know your number properties? Take this quiz and find out what you know or what you don't know. Immediate feedback. Check your answer right online.
Handout
Math Open Reference

Math Open Reference: Reciprocal

For Students 5th - 8th Standards
Learn about reciprocals with this site which offers detailed explanations and multiple examples. Topics covered include how to find a reciprocal of a fraction, number, or decimal.
Professional Doc
Louisiana Department of Education

Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Arithmetic Operations Including Dividing by a Fraction

For Students 6th Standards
A guide to support parents as they work with their students with arithmetic operations including dividing by a fraction.
Activity
Purple Math

Purplemath: Basic Number Properties: Associative, Commutative, and Distributive

For Students 9th - 10th Standards
This Purplemath lesson includes many different number properties explained by using examples.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Mixed Numbers in Applications

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Solve real-world problems that involve multiplying and dividing real numbers.
Unit Plan
CK-12 Foundation

Ck 12: Determinants

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Understand that the zero and identity matrices play a role in matrix addition and multiplication similar to the role of 0 and 1 in the real numbers. The determinant...
Activity
Massachusetts Institute of Technology

Mit: Useful Trigonometric Identities

For Students 9th - 10th
This list of trigonometric identities includes the factoring formulas near the bottom. A great tool for reference.
Interactive
Shodor Education Foundation

Shodor Interactivate: Equation Solver

For Students 9th - 10th Standards
This activity helps with understanding how to balance an algebraic equation. You input the term and the operation. The activity uses that term, operates on both sides of the equation, then displays the resulting equation.
Lesson Plan
Shodor Education Foundation

Shodor Interactivate: Solving Equations

For Teachers 9th - 10th Standards
Introduction to various algorithms for solving single-variable, linear equations.
Unit Plan
Cuemath

Cuemath: Reciprocal Function

For Students 9th - 10th Standards
Explore the world of reciprocal functions in this mini-lesson. Discusses a definition its domain and range, graphing of the reciprocal function, solved examples on reciprocal functions, and interactive questions.
Unit Plan
Oswego City School District

Regents Exam Prep Center: Properties of Real Numbers

For Students 9th - 10th
This chart gives the definition of each Real Number Property with an example excellent for reference or review. Site by Oswego City School District.
Article
Cuemath

Cuemath: Integers

For Students 6th - 9th Standards
The term "integer" was adapted in Mathematics from the Latin word "integer", which means intact or whole. Integers are very much like whole numbers, but they also include negative numbers. This article explains the properties of integers...
Activity
Oswego City School District

Regents Exam Prep Center: Who's Who? Properties of Real Numbers

For Teachers 3rd - 8th Standards
A great opportunity for your students to practice their knowledge of the number properties with the card game. A quick way to help students learn.
Professional Doc
Louisiana Department of Education

Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Rational Numbers

For Students 7th Standards
A guide to support parents as they work with their students in rational numbers.
Activity
Discovery Education

Discovery Education: Web Math: Multiplying Complex Numbers

For Students 9th - 10th Standards
WebMath contains a program that calculates the multiplication of two or more complex numbers by inputting the problem.
Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Division of Rational Numbers

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Divide rational numbers and simplify the quotient.

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