Common Core Sheets
Determining Perimeter with Square Units
Third graders determine the perimeter of a shaded section by counting the number of unit squares that surround it. Each section is shaded on a small square unit grid.
Curated OER
Perimeter: The Distance around a Shape
A few good questions move this lesson right along. Young mathematicians use critical-thinking skills as they learn how to determine the perimeter of various shapes. They determine perimeter first by measuring and adding the lengths of...
Buffalo State
A Five Day Approach to Using Technology and Manipulatives to Explore Area and Perimeter
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 rectangles,...
Curated OER
Perimeter
Have your class practice finding the perimeter of several given shapes. This slide show includes a definition and example of how to find perimeter along with several practice problems for the class to solve.
Curated OER
Perimeter
Introduce the concepts and skills needed to find perimeter. The slide show includes the definition of perimeter, five examples, and a link to an interactive web page.
Alberta Learning
Area and Perimeter of Irregular Shapes
Evaluate young mathematicians' understanding of area and perimeter with this series of three assessment tasks. Challenging students to not only calculate the area and perimeter of irregular shapes, but to explain in writing their...
Common Core Sheets
Finding Side Length (Given Perimeter)
Perimeter is the total distance around an object. One can find the perimeter of a rectangle or square by adding all four side lengths together. These worksheets require third graders to find the missing side length, given the perimeter...
Curated OER
Area, Perimeter and Rations Using Pentominoes
Learners of all ages investigate area and perimeter through pentominoes. In this geometry instructional activity, students calculate the are and perimeter of different geometric shapes and describe the properties of similar and congruent...
Curated OER
Classification of Triangle Measurement & Perimeter
In this classification of triangles worksheet, 10th graders identify and complete 8 different problems that include determining the measurement and perimeter of various types of triangles. First, they color all right, acute, and obtuse...
Curated OER
Perimeters: Which Constellation is the Longest?
High schoolers use diagrams of the constellation Orion and the constellation Ursa Major which show the distances between the stars of the constellations. They calculate the perimeters of each, find the average distance of the stars for...
Curated OER
Calculating and Measuring Perimeters of Polygons
If you're teaching 3rd or 4th grade math, this presentation is a must have. It defines perimeter and polygons, then describes the process by which perimeter is determined through pair share discussion and critical thinking questions....
Curated OER
L.O. Calculating Area and Perimeter (Version 2)
An excellent presentation on calculating area and perimeter. Young mathematicians practice the skills involved with determining the area and the perimeter of a variety of rectangular shapes. The final two slides present a challenging...
Curated OER
Scale Drawing: Perimeter and Area of a Room
Using a scale drawing with some dimensions missing, aspiring do-it-yourself homeowners calculate the remaining sides of a compound-shaped room. They apply the principles of ratio and proportion to determine how much crown molding will be...
National Security Agency
Backyard Building - Area and Perimeter
Turn young mathematicians into landscape architects with this four-lesson series on area and perimeter. Beginning with a basic introduction to calculating perimeter and area using non-standard units of measurement, this instructional...
Curated OER
Area & Perimeter Assessment And Practice
Using a pre-test, this instructional activity starts by establishing differentiated learning groups. Each group practices determining area and perimeter using interactive web sites small groups are then pulled aside and given additional...
Curated OER
Perimeter
Young scholars study about perimeter and the units used to measure perimeter using a variety of materials including their hands, feet, rulers, and computer applets. They understand such attributes as length, area, weight, volume, and...
Curated OER
Perimeter All Around
Learners explore perimeter and area of regular and irregular polygons. They experiment with color squares and create different arrangements using the same number squares. Then they compare the area and perimeter measurements of each.
Curated OER
Measuring Perimeter
Have your class practice measuring the perimeter of various objects using this resource. Fifth graders place various-sized polygons in order (from largest to smallest). They use non-standard measuring tools to estimate the distance...
Curated OER
Using Area & Perimeter
In this area and perimeter instructional activity, students solve and complete 6 different problems that include a school community yard. First, they use the table to determine the cost for each yard of fence. Then, students determine...
Curated OER
Pitch Perimeters
Teach your class how to calculate the perimeter of a rectangle with this handy visual aid. Perimeter is described and calculated. Next, students are shown a rectangle and asked to determine the perimeter and discuss their strategies....
Curated OER
Perimeter of Shapes
These squares and rectangles have length and width measurements with decimals; can young geometers determine the exact perimeter of each? Using a step-by-step example as guidance, they show work to find the perimeter of each of these...
Curated OER
Perimeter of Polygons in Word Problems
Peruse these perimeter word problems with beginning geometers, possibly projecting it as an all-class warm up. There are three scenarios here, each with a visual. Scholars determine the perimeter of a swimming pool, find the missing...
Curated OER
Measurement: Perimeter
In this perimeter worksheet, 10th graders identify and complete 9 different problems that include determining the perimeter of various figures. First, they complete the table by writing the number of sides in each figure listed on the...
Curated OER
Perimeter and Area of Complex Figures
For this perimeter and area worksheet, students solve 6 word problems where they must determine the perimeter or area of complex figures. Diagrams are provided and real world applications like gardens and carpeting are used in the problems.