Unit Plan
Khan Academy

Khan Academy: Math Patterns 1

For Students 2nd - 4th Standards
Identify arithmetic patterns (including ones in the addition or multiplication tables), and explain them using properties of operations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...
Graphic
Math Medics

S.o.s. Math: Hyperbolic Functions

For Students 9th - 10th Standards
This math lesson gives formulas for the hyperbolic trigonometric functions, a very most important property of their version of the Pythagorean Theorem, and it's verification, and many helpful visual aides.
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...
Whiteboard
ClassFlow

Class Flow: Fact Families

For Teachers Pre-K - 1st Standards
[Free Registration/Login Required] In this activity, students use the visual cues from a fact family triangle, manipulatives and numbers to understand and apply the concepts and procedures of mathematics including addition, subtraction,...
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Opposites

For Students 9th - 10th Standards
Find a quick, concise explanation of the property of opposites. Several examples are given and clearly explained.
Website
California Institute of Technology

Spitzer Science Center: Ring of Stellar Death

For Students 9th - 10th
The Ring of Stellar Death captured in this space telescope image features a dying star expelling what appears to be clumpy rings of material, but turns out to be part of a planetary nebula. In addition, a detailed textual overview...
Activity
Math2

Math2.org: Basic Algebraic Identities

For Students 9th - 10th
The basic identities and properties of addition and multiplication are listed. No explanation, simply the identities.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Selecting the Related Addition Fact

For Students K - 1st Standards
[Free Registration/Login may be required to access all resource tools.] The video describes how to determine which addition fact is related to the given addition problem. The video uses vocabulary of addends and sum. The video is...
Lesson Plan
Better Lesson

Better Lesson: Introduction to Solving Equations

For Teachers 6th Standards
Sixth graders work with the concept of equality and balance to solve one and two-step algebraic equations.
Unknown Type
Khan Academy

Khan Academy: Integers: Negative Numbers: Number Opposites

For Students 5th - 7th Standards
Students take a quiz over the concept of integer opposites, also known as additive inverses. After answering each question they are given feedback. Hints are available but affect the score. If students are still struggling with the...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Counting Dots in Arrays

For Teachers 2nd - 3rd Standards
This task aims to show students that there is often more than one way to represent a quantity. This lesson also lays a foundation for students to understand the commutative property of multiplication.
Handout
University of St. Andrews (UK)

University of St. Andrews: Brahmagupta

For Students 9th - 10th
Brahmagupta was a mathematician and an astronomer. He is responsible for the addition and multiplication properties of zero.
Whiteboard
ClassFlow

Class Flow: Commutative Property

For Teachers 1st - 5th Standards
[Free Registration/Login Required] This is the first lesson in a unit on the properties of addition and multiplication. It covers the commutative property and includes a short video clip, internet website, and Activote assessment.
Handout
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Commutative, Associative, Distributive

For Students 9th - 10th Standards
Find a quick, concise explanation of the Arithmetic Properties-Associative, Commutative, and Distributive Properties. Examples are given for each property to help you understand how to recognize and apply each property.
Activity
Oswego City School District

Regents Exam Prep Center: Closure Property

For Students 9th - 10th
This site gives a very clear discussion on the topic of closure of sets over an operation with many examples.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 5.md,oa You Can Multiply Three Numbers in Any Order

For Teachers 5th Standards
The purpose of this task is for students to use the volume of a rectangular prism to see why you can multiply three numbers in any order you want and still get the same result. Aligns with 5.OA.A and 5.MD.C.5.
Handout
Science Struck

Science Struck: Adding Exponents

For Students 9th - 10th Standards
Explains how to add exponents as well as other aspects of exponents including positive and negative exponents, rational exponents, zero exponents, power of power, and division of exponents. Includes practice problems with answers provided.
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: Intermediate Algebra: Linear Equations in One Variable

For Students 9th - 10th Standards
After completing this tutorial, you'll know what a linear equation is and how to solve one using various arithmetic properties. Contains several definitions, problems with step-by-step solutions, and practice exercises. Includes links to...
Interactive
NumberNut

Number Nut: Carrying Like Addition

For Students 3rd - 5th Standards
Use what you already know about addition to master this skill in multiplication. This lesson reviews the concept of carrying in multiplication. Detailed examples are provided along with interactive games to practice the skills learned....
Lesson Plan
Alabama Learning Exchange

Alex: Mix It Up!

For Teachers Pre-K - 1st
By now, students have learned that fact families include both addition and subtraction facts. They have also learned that by reversing the order of the addends, they can form related addition facts with the same sum. The students will...
Activity
Other

Dan's Math: Basic Skills Topics

For Students 9th - 10th Standards
College professor Dan Bach offers a review of various basic topics in arithmetic, pre-algebra, and algebra. Order of operations, exponents, square roots, variables, and combining terms are just a few of the many topics covered.
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.
Whiteboard
ClassFlow

Class Flow: Trigonometric Functions

For Teachers 9th - 10th Standards
[Free Registration/Login Required] After a quick review of properties in Algebra- addition property of equality and multiplication property of equality- students are guided through all solutions using numerous strategies including back...
Activity
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Distributive Property Illustrated

For Students 6th - 8th Standards
This is part of a math forum at Drexel University. A student gets frustrated when asked to solve a problem using the distributive property. Never fear. Dr. Math to the rescue! Illustrations and detailed examples help provide...

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