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

### We found 189 resources with the concept area of rectangles

Videos (Over 2 Million Educational Videos Available)

8:55

The Circulatory System Part 1: The Heart

5:34

Women's History Activator: Eleanor Roosevelt

3:07

Who was Frederick Douglass?

Other Resource Types
(189)

Lesson Planet

#### CORE Math Performance Assessment Modules: Grade 3

Assess the math skills of third graders by casting them in the roles of cookie makers, data collectors, farmers, gardeners, delivery people, theatre attendees, muralists, and window washers. The nine CORE Math Performance Assessments in...

Lesson Planet

#### Mathematics Assessment Project: Tests for Middle School

Good assessments are hard to find—assessments that address content standards and fit into standard class periods. The six assessments in the middle school collection are 80-minute forms, divided into two 40-minute sections, and are...

Lesson Planet

#### High School Balanced Packet 1 Assessment Tasks

Are you looking for assessment tasks for Algebra 1, Algebra 2, or geometry? Check out this collection of 20 assessment tasks designed for high schoolers. Problems are presented with an open-ended format allowing students to use multiple...

Lesson Planet

#### AP Calculus AB

Prepare high school mathematicians for the AP Calculus AB exam with a collection of 38 videos that can be used to introduce the topics or as a review. The videos focus on two processes; differentiating a function and integrating a...

EngageNY

#### EngageNY Geometry Module 3: Extending to Three Dimensions

Building on the understanding of congruence studied in Module 1 and on similarity studied in Module 2, the 14 lessons in the Module 3 collection focus on developing a bridge from geometric measurement in two dimensions to understanding...

Lesson Planet

#### Grade 7, Claim 1: Concepts and Procedures Item Slide Shows

Prepare seventh graders for end-of-year assessments with a collection of nine resources packed with teacher and student-friendly slides featuring problems that address the A-I competencies. Questions are modeled after Smarter Balanced...

EngageNY

#### EngageNY Grade 7 Math Module 3: Expressions and Equations

A math module challenges young mathematicians to generate equivalent expressions. Scholars demonstrate how order or grouping does not affect the practice of addition and multiplication. By the end of the module, learners recognize and...

EngageNY

#### EngageNY Grade 6 Math Module 5: Area, Surface Area, and Volume Problems

Scholars take part in 20 lessons covering math concepts—area, surface area, and volume. Learning opportunities enforce knowledge of measurement and geometric shapes. A mid-unit exam challenges pupils to demonstrate what they know this...

Lesson Planet

#### Common Core Math: 3rd Grade

Looking for all things third grade Common Core math? Here is the collection you've been waiting for! Third grade math curriculum is rigorous and opens up the doors to bigger algebra concepts that learners will use their entire lives....

Lesson Planet

#### Area and Perimeter

Get third graders excited to work find area and perimeter of unit squares, rectangles, and irregular shapes. A 36-page packet comes with task cards, graphic organizers, practice worksheets, printables with squares, exit tickets, and word...

Lesson Planet

#### Creating Area and Perimeter Rectangles

Third graders are challenged to draw their own rectangles given a specific area or perimeter. There are no examples of how each rectangle should look, so it is important for learners to persevere in finding a solution. There is more than...

Lesson Planet

#### Rectangles - Same Perimeter and Different Area

Given a rectangle with specified dimensions, learners are prompted to create a new rectangle with the same perimeter, but a different area. This challenges third graders to think about perimeter and area in a new way. Each problem...

Lesson Planet

#### Rectangles - Same Area and Different Perimeter

Given a rectangle with specified dimensions, third graders are prompted to create a new rectangle with the same area, but a different perimeter. This challenges learners to think about perimeter and area in a new way. Use worksheet as a...

Lesson Planet

#### Determining Rectilinear Area

Third graders find the area of rectilinear shapes by partitioning them into two non-overlapping rectangles and adding the areas of the non-overlapping parts together. It allows learners to recognize area as an additive.

Lesson Planet

#### Determining Area with Square Units

Third graders measure area by counting unit squares inside a rectangle.

Lesson Planet

#### Finding Area by Tiling

Third graders find area by tiling a rectangle based on the given side lengths. This helps learners visualize and create the area of a figure. From here, they can count the total number of tiles inside the rectangle to find the answer.

Lesson Planet

#### Finding Side Length (Given Area)

Area is the amount of space that takes up the inside of a figure. To find the area of a rectangle, one must multiply the length by the width. Here, third graders are challenged to find the missing side length, given the area.

Lesson Planet

#### Exploring 3-D Geometry

Take young mathematicians on an exploration of the world of 3-D geometry with this seven-lesson unit. After first defining the terms perimeter, area, and volume and how they apply to the real world, students continue on to learn the...

Lesson Planet

#### Multiplying Monomials

Multiply polynomials with Sal Khan! In this one-minute video, Sal describes what a monomial is, and how it can be used to express the area of a rectangle.

Lesson Planet

#### Area and Perimeter Activities

Read this article before you begin teaching geometry! It gives teachers some insight into the world of teaching geometry to young learners, and four area and perimeter lessons are attached.

Lesson Planet

#### Secret Formulas

Learners calculate the perimeter of rectangles and squares. They imagine trying to build a fence around a yard or trying to determine how much paint they need to paint a room. They also develop formulas and procedures for determining the...

Lesson Planet

#### Sports Bag

Lay it out using the least amount of material. Learners use the dimensions of a cylindrical sports bag to find out the size of pieces of material needed to sew them. The pupils find the best placement of the pieces to use the least...

Lesson Planet

#### Find the Height of a Rectangle Given the Area (Example)

Just how long is that rectangle? Pupils watch a short example on finding the base of a rectangle. The video shows how to use the formula for area to solve for an unknown measure knowing the other two.

Lesson Planet

#### Dimensions That Maximize the Area of the Rectangle

Opt to learn about optimization. Young mathematicians view an educational video that posits the question: For a given perimeter, what are the dimensions that maximum the area of a rectangle? With the use of optimization skills, they...