####
Now... gain access to over
**2 Million**
curated educational videos and
**500,000**
educator reviews to free & open educational resources

### We found 3,724 reviewed resources for Numbers and Operations

Videos (Over 2 Million Educational Videos Available)

3:11

Defining Gravity

5:10

How Computers Work: What Makes a Computer,...

5:34

Women's History Activator: Eleanor Roosevelt

Other Resource Types ( 3,724 )

Lesson Planet

#### Perform Arithmetic Operations with Complex Numbers: High School Math Common Core

Imagine a world where all the numbers live together harmoniously. Here you have it! Check out these resources that introduce the concept of an imaginary number, go through the operations, and model how to utilize the conjugate.

Lesson Planet

#### Mental Math and Compatible Numbers

Strengthen the skills of mental math when using compatible numbers. Find numbers that benefit one another when doing the four operations. Practice correct estimating to make those operations go quicker and better understand if the...

EngageNY

#### EngageNY Grade 6 Math Module 2: Arithmetic Operations Including Division of Fractions

Twenty-one lessons and two exams make up a math unit all about decimal operations and division of fractions. By way of direct instruction, discussion, guided practice, collaborative learning, and independent practice scholars solve...

EngageNY

#### EngageNY Precalculus and Advanced Topics Module 1: Complex Numbers and Transformations

Prepare your mathematicians for calculus with a collection of 32 lessons that focus on three topics: linearity, complex number operations as transformations, and the power of right notation. Each lesson includes teacher materials...

EngageNY

#### EngageNY Grade 7 Math Module 2: Rational Numbers

Middle schoolers play the Integer Game to build a mental picture and conceptual understanding of integer operations. Tweens add, subtract, multiply, and divide signed numbers—a practice beneficial in developing their competency of...

Lesson Planet

#### Grade 2 Supplement Set: Math

What would be better for your second grade mathematicians? Grab this set of engaging lesson plans that will be the highlight of your students' day as they learn how to tell time, solve equations, add and subtract multi-digit numbers, and...

EngageNY

#### EngageNY Precalculus and Advanced Topics Curriculum

A 5-module complete precalculus course begins with young mathematicians exploring linearity, complex number operations as transformation, and the power of the right notation. Module 2 has pupils examining incidence relationships in...

EngageNY

#### EngageNY Algebra II Module 1: Polynomial, Rational, and Radical Relationships

The 42 lessons in the Algebra II Module 1 collection enable students to connect polynomial arithmetic to computations with whole numbers and integers. Application and modeling problems include both real world and purely mathematical...

EngageNY

#### EngageNY Algebra II Module 1: Polynomial, Rational, and Radical Relationships

The 42 lessons in the Algebra II Module 1 collection are divided into four topics: Polynomials--From Base Ten to Base X, Factoring-- Its Use and Its Obstacles, Solving and Applying Equations—Polynomial, Rational and Radical, and A...

Lesson Planet

#### Essence of Linear Algebra

The 15 videos in the Essence of Linear Algebra collection teach students how to understand the numerical operations of matrices as well as the geometric intuitions underlying them. The first video in the series details the rationale...

Lesson Planet

#### Common Core Math: 8th Grade

Check out the Common Core with a collection that represents all the 8th grade math standards. Most resources engage multiple standards but the main one is listed on the notes section of each tab.

Lesson Planet

#### Algebra: High School Common Core Math

All Algebra, all the time! Here is a compiled list of resources that address all of the standards regarding Algebra Common Core for high school. Each resource has the main standard it addresses under the notes section of the item.

Lesson Planet

#### Number and Quantity: High School Common Core Math

This collection has a resource for each standard in the Number and Quantity selection of the CCSS. While several of the resources cover multiple standards, the focus standard is listed in the notes section of each resource for easy viewing.

EngageNY

#### EngageNY Precalculus and Advanced Topics Module 2: Vectors and Matrices

Here's a collection for gamers and non-gamers. The 29 lessons in the Calculus and Advanced Topics Module 2 are divided into five topics: Networks and Matrices, Linear Transformation of Planes and Space, Systems of Linear Equations,...

Lesson Planet

#### Common Core Math: 6th Grade

Need some help aligning your 6th grade math curriculum to Common Core? Here is a collection complete with a resource for every standard in the curriculum. While many of these resources cover multiple math standards, the main one...

EngageNY

#### EngageNY Algebra I Curriculum

The Algebra 1 curriculum set is designed to help scholars develop fluency in
writing, interpreting, and solving linear equations, The 30 lessons in Module 1 are divided into four topics: An Introduction to Functions, the Structure of...

Lesson Planet

#### Grade 1 Math: Partner Work, Numbers and Operations, Pattern Recognition

Looking for patterns is a key skill young learners need to know. They build number sense by first looking for number patterns in a series of simple addition and subtraction problems that all involve the number zero. They work with a...

Lesson Planet

#### Grade 2 Supplement Set A1 – Numbers and Operations: Addition and Subtraction

Using unifix cubes, a spinner, a number line, and fact family triangles second graders will play their way to subtraction competency. They engage in a series of activities that has them playing game that require them to add and subtract...

Lesson Planet

#### Numbers and Operations as Words

Teach numbers in word form with this activity. In this numbers and operations worksheet, learners solve 22 problems in which numbers are written in word form. Students solve the problems and write their responses in word form. Example:...

Lesson Planet

#### Numbers and Operations in Base Ten

First graders use a ten frame and counters to demonstrate their understanding of two-digit numbers. Use the included suggested questions to check for understanding and encourage abstract reasoning.

Lesson Planet

#### Number Operations

Inject fun into your math review! Pupils review basic math operations with decimals as well as addition and subtraction with simple fractions. In this number operations lesson, students work in groups to create a game for the math skill...

Lesson Planet

#### Introducing Integers and Their Operations

There's nothing negative about this mini-unit on integers! Engaging young mathematicians in a series of hands-on activities and collaborative learning opportunities, this resource offers an excellent way to introduce your class to...

Lesson Planet

#### More Complicated Order of Operations Example

Demonstrating a "really hairy and beastly problem," Sal again shows the power and importance of solving an equation according the order of operations. Additionally, he guides viewers through a step in the equation when there are multiple...

Lesson Planet

#### Introduction to Order of Operations

First demonstrating the improper ways of solving an equation (left-to-right, multiplication first), Sal shows viewers how the answer of an equation can be drastically incorrect by neglecting to use the order of operations. He uses...