Lesson Planet
Search educational resources
  • Sign In Try It Free
  • AI Teacher Tools
    • Discover Resources Search reviewed educational resources by keyword, subject, grade, type, and more
    • Curriculum Manager (My Content) Manage saved and uploaded resources and folders To Access the Curriculum Manager Sign In or Join Now
    • Browse Resource Directory Browse educational resources by subject and topic
    • Curriculum Calendar Explore curriculum resources by date
    • Lesson Planning Articles Timely and inspiring teaching ideas that you can apply in your classroom
    • Our Story
    • Frequently Asked Questions
    • Testimonials
    • Contact Us
  • Pricing
  • School Access
    • Your school or district can sign up for Lesson Planet — with no cost to teachers
      Learn More
  • Sign In
  • Try It Free

Hi, what do you want to do?

Create a lesson plan
Create a lesson plan
Generate resources with 80+ AI teacher tools
Generate resources with 80+ AI teacher tools
Search 200,000 instructional videos
Search 200,000 instructional videos
Find a teaching resource
Find a teaching resource
Rectangles - Same Perimeter and Different Area WorksheetRectangles - Same Perimeter and Different Area Worksheet
Publisher
Common Core Sheets
Resource Details
Curator Rating
Educator Rating
Not yet Rated
Grade
3rd
Subjects
Math
1 more...
Resource Types
Worksheets
3 more...
Audiences
For Teacher Use
1 more...
Instructional Strategies
Independent Practice
1 more...
Worksheet

Rectangles - Same Perimeter and Different Area

Curated and Reviewed by Lesson Planet
This Rectangles - Same Perimeter and Different Area worksheet also includes:
  • Answer Key
  • Join to access all included materials

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 contains two square unit grids; one with the original rectangle and one that is blank for the new rectangle

142 Views 109 Downloads
CCSS: Designed

Concepts

area, perimeter, perimeter of rectangles, area of rectangles

Additional Tags

math

Instructional Ideas

  • Use worksheet as a teaching tool before distributing as independent practice
  • Allow students to work in groups to facilitate collaboration
  • Implement the exercise at the end of a unit on area and perimeter
  • Instruct class to label the sides of the new rectangle and write an equation to represent the new dimensions

Classroom Considerations

  • Each problem contains two square unit grids; one with the original rectangle and one that is blank for the new rectangle
  • Print all 10 versions of the worksheet or choose your favorites and print by page

Pros

  • All 10 versions of the worksheet include an answer key

Cons

  • None

Common Core

3.MD.D.8

See similar resources:

Assessment

Area and Perimeter

Curriculum Corner
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...
3rd - 4th Math
CCSS: Adaptable
Unit Plan

A Five Day Approach to Using Technology and Manipulatives to Explore Area and Perimeter

Buffalo State
Young mathematicians build an understanding of area and perimeter with their own two hands in a series of interactive geometry lessons. Through the use of different math manipulatives, children investigate the properties of...
3rd - 6th Math
CCSS: Adaptable
Lesson Plan

Awesome Area - Geometry and Measurement

National Security Agency
Break out those math manipulatives, it's time to teach about area! Capturing the engagement of young mathematicians, this three-lesson series supports children with learning how to measure the area of squares, rectangles, and other...
2nd - 4th Math
CCSS: Adaptable
Worksheet

Areas of Rectangles and Squares

DK Publishing
Each of these rectangles and squares has the length and width given with units. Can scholars solve for the area? Designed for beginners to this skill, all of these are whole-number single-digit measurements. There is a detailed example...
3rd - 4th Math
CCSS: Designed
Worksheet

Perimeter and Area

Curated OER
Dawn, a fictitious student, drew a long rectangle shape in her math journal, and now your class will explore it! They find the measurements of each side, total the perimeter, and find the area. Consider using this as inspiration: have...
3rd - 4th Math
PPT

Who Wants to Be a Champion: Perimeter, Area, Symmetry

Curated OER
Have your learners practice finding the perimeter and area of geometric shapes using this resource. While just a simple review, this could be a wonderful way to solidify the concepts in their minds.
3rd - 5th Math
Instructional Video

How Do You Find the Perimeter of a Rectangle?

Curated OER
The teacher illustrates a diagram to help you learn about perimeter. First, she adds the sides together to get the perimeter. Then, she shows how to use the perimeter formula to make it a bit simpler.
5 mins 3rd - 5th Math
Lesson Planet Article

Area and Perimeter Activities

Curated OER
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. 
3rd - 5th Math
CCSS: Adaptable
Unit Plan

Ck 12: Elem Math: Partitioning Composite Figures Into Rectangles to Find Area 1

CK-12 Foundation
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to partition a shape into rectangles and add their areas together to get the area of the whole figure. Includes video...
3rd - 5th Math
CCSS: Adaptable
Lesson Plan

ExplorA-Pond: 4th Grade Perimeter Estimation

Curated OER
Your geometers are used to finding the perimeter of a square or rectangle, so give them something different this time! With this lesson, small groups will receive a picture of a shoreline and calculate the perimeter. The website listed...
3rd - 4th Math
Try It Free
© 1999-2026 Learning Explorer, Inc.
Teacher Lesson Plans, Worksheets and Resources

Sign up for the Lesson Planet Monthly Newsletter

Open Educational Resources (OER)

  • Health
  • Language Arts
  • Languages
  • Math
  • Physical Education
  • Science
  • Social Studies
  • Special Education
  • Visual and Performing Arts
View All Lesson Plans

Discover Resources

  • Our Review Process
  • How it Works
  • How to Search
  • Create a Collection

Manage Curriculum

  • Edit a Collection
  • Assign to Students
  • Manage My Content
Contact Us Site Map Privacy Policy Terms of Use