Lesson Plan
Curated OER

Double, Double: Looking at the Effect of Change on Perimeter, Area and Volume

For Teachers 9th - Higher Ed
Students explore perimeter, volume, and area. In this math instructional activity, students explore how changes in dimensions of geometric shapes affect the perimeter, area and volume of the various shapes. Students investigate the...
Worksheet
Curated OER

Area of Triangles

For Students 6th - 8th
For this math learning exercise, students draw two triangles and one pentagon. Then they use the correct formula to calculate the area for each.
Worksheet
Curated OER

Circumference and Area

For Students 10th
In this circumference and area worksheet, 10th graders solve nine problems relating to geometric shapes. They find the circumference of a circle and the perimeter of a triangle and a six-sided figure. Students also find the area of a...
Worksheet
Curated OER

Lengths, Areas and Shapes - Week 9

For Students 12th - Higher Ed
In this lengths, areas and shapes activity, students explore overlapping and non-overlapping patterns. They identify the number of objects in a pattern, determine how the pattern may be folded to create additional patterns, and determine...
Worksheet
Curated OER

Circumference and Area

For Students 6th - 8th
In this geometry worksheet, students answer 10 questions regarding, circumference, area, time, calculating the radius if given a diameter, and polygon recognition.
Worksheet
Raytheon

Geometry: Perimeter and Area

For Students 5th - 8th
In this geometry worksheet, young mathematicians apply the formulas for the area and perimeter of polygons and circles to solve a variety of skills practice and problem-solving questions.
Lesson Plan
Curated OER

How Many Units?

For Teachers 2nd - 3rd Standards
Young mathematicians calculate the area of rectangles and squares. For this geometry lesson, learners are grouped in pairs and use geoboards to construct rectangles. They calculate the area of the figure by counting the number of square...
Lesson Plan
Curated OER

nvestigation - Justin and Daniel's Puzzles

For Teachers 7th
Seventh graders explore area and perimeter, using tangram pieces. They discover the area and perimeter of rectangles and squares. After experimentation, 7th graders write a rule for finding the perimeter and area of squares and rectangles.
Lesson Plan
Curated OER

Complexity Madness

For Teachers 5th
Discuss different techniques for finding the area of a geometric shape, with a great visual guide. Using a real life example, learners calculate the area of a rectangle and a square. 
Worksheet
Curated OER

Using Formulae

For Students 10th
In this Formulae worksheet, 10th graders identify and solve 9 different problems that include using particular formulas as given in each set of instructions. First, they determine the perimeter of a rectangle using the formula given....
Lesson Plan
Curated OER

Which Chocolate Is The Biggest?

For Teachers 4th - 5th
Students investigate the concepts of area and perimeter with the use of chocolate bars. They calculate the perimeter and area of different size rectangle chocolate bars and record the statistics. Then students make a visual comparison...
Activity
Illustrative Mathematics

Same Base and Height, Variation 1

For Teachers 5th - 7th Standards
Four triangles are depicted for learners to construct on a geoboard. They compute and compare the areas, and so meet one of the sixth grade Common Core standards for geometry. Note that the set of triangles does not include a right...
PPT
Curated OER

Mathematics - Squares, Square Roots

For Teachers 7th - 9th
Looking for a quick introduction or review for area formulas?  Terminology and formulas for the area of squares, rectangles and triangles is presented. Connections with exponents and the Pythagorean Theorem are demonstrated.
Lesson Plan
Curated OER

Complexity Madness

For Teachers 5th
After introducing the concept and formula for finding the area of a square, try this lesson. Fifth graders will use their prior knowledge to break apart various shapes in order to determine area. This lesson includes several examples,...
Worksheet
Curated OER

Perimeter of Shapes

For Students 3rd - 4th Standards
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...
Lesson Plan
Curated OER

The Trapping of Trapezoids

For Teachers 6th - 8th
This is a nice hands-on activity where young geometers create trapezoids and calculate their area by looking at areas of quadrilaterals and triangles. 
Worksheet
Curated OER

Math Maven's Mysteries

For Students 5th - 7th
In these math word problem worksheets, students help solve the mystery about 'The Case of the Shifting Shapes.' Students solve the problem by completing a rectangle area problem and also determine where Rex Tangle will appear next.
Lesson Plan
Curated OER

Cover and Boarders

For Teachers 4th - 6th
Students find the area and perimeter of rectangular figures. They use this information to find patterns and discover relationships between area and perimeter. Students apply and explain formulas relating to perimeter, area, and volume.
Lesson Plan
Curated OER

Pacing a Gunther Chain

For Teachers 3rd - 5th
Students pace a Gunther Chain, a measurement used by foresters to determine distance and area. They discuss that pacing is individualized depending on age, gender, etc. They practice to find an average pace. Teams estimate, pace and...
Lesson Plan
Curated OER

Connecting Formulas Related to Geometric Figures

For Teachers 8th - 12th
Students identify diagrams of quadrilaterals and circles by different names and classify the figures. They name the areas for each diagram and practice solving the formulas for each.
Worksheet
Curated OER

Measurement Word Problems

For Students 4th - 6th
Learners complete word problems dealing with perimeter, area, length of sides, and more. They complete 10 multiple choice word problems.
Lesson Plan
Curated OER

ExplorA-Pond: 4th Grade Perimeter Estimation

For Teachers 3rd - 4th
Your geometers are used to finding the perimeter of a square or rectangle, so give them something different this time! With this instructional activity, small groups will receive a picture of a shoreline and calculate the perimeter. The...
Interactive
CK-12 Foundation

Using Quadratic Equations to Solve Problems: Construct a Soccer Field

For Students 9th - 12th Standards
Determine whether the soccer field has the right area. Pupils create a virtual soccer field based upon constraints. They determine the equation that models the area and continue to investigate other potential areas.
Performance
Radford University

Escape from the Zombie Apocalypse - Exploring Quadrilaterals through Google Maps and Google Earth

For Teachers 9th - 12th Standards
Prepare for the zombie apocalypse ... by studying quadrilaterals? Given a map of an imaginary town, scholars identify quadrilaterals created by streets. They then use Google Earth and Google Maps to find parallelograms, rectangles,...

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