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Lesson Plan
Curated OER

Side Length, Perimeter, and Area of a Rectangle

For Teachers 9th - 12th Standards
Students calculate area, perimeter and length of rectangles. In this geometry lesson plan, students create different formulas for the problem they are being asked to solve. They use the navigator to move the shape around and make...
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Worksheet
Curated OER

Area of Quadrilaterals

For Students 10th
In this area of quadrilaterals worksheet, 10th graders solve and complete 5 various types of problems. First, they solve each of the triangles shown and find the area of each triangle. Then, students prove that the sum of the squares of...
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Worksheet
Math Mammoth

Special Products

For Students 6th - 8th
For this math worksheet, students write a four-part expression for the area of the whole rectangle and simplify it. They also practice multiplying the binomials.
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Worksheet
Curated OER

Geometry Practice: Loci and Transformations

For Students 9th - 12th
This resource guides young geometers to create new polygons from others of equal area, compare an image to its reflection and find errors, conduct repeated reflections, map translations, and determine center of rotation. No solutions are...
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Lesson Plan
Curated OER

A Rectangular Prism and Its Net

For Teachers 6th - 10th
Identify the nets for prisms and other geometric shapes. Learners calculate the surface area of the rectangular prism then sketch the shapes of prisms and other polygons. Unfolded cereal boxes are used as a visual aid, great idea!
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Lesson Plan
Curated OER

Triangles

For Teachers 3rd - 5th
This unit enables scholars to apply the rule for area of a triangle (area equals half base times height). They practice multiplication and division strategies as they calculate areas.
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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...
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Lesson Plan
Curated OER

Does Your Rectangle Have Guts?

For Teachers 3rd - 4th
Does it? Kids find the perimeter and area of different shapes to assess whether their rectangle has guts. In addition to finding the area of a rectangle, learners work to find the area of a trapezoid. All worksheets are included. 
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Lesson Plan
Curated OER

Measurement: Cylinders

For Teachers 8th - 10th
Math scholars observe and demonstrate how to calculate the surface area and volume of cylinders. They analyze pictures of various cylinders on a handout, solve problems on two worksheets independently, and discuss the answers to the...
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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.
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Lesson Plan
Curated OER

Pythagorean Theorem

For Teachers 7th - 10th
In this measurement lesson, learners examine the Pythagorean Theorem, perimeter, and areas of right triangles. They record their measurements and research their findings on a grid.
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Worksheet
Curated OER

7th Grade Math Worksheet

For Students 7th
In this integers activity, 7th graders solve 10 different problems that include various types of integers and graphs. First, they determine the sum of 3 consecutive integers. Then, students find the ratio between 2 areas of similar...
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Lesson Plan
Mathematics Assessment Project

Evaluating Statements About Length and Area

For Teachers 9th - 12th Standards
Class members complete an assessment task by identifying whether statements about triangles and quadrilaterals are always true, sometimes true, or never true. They then participate in a sorting activity with the same objective.
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Worksheet
Curated OER

Geometry Involving Figures - Week 12 (Ratio and Surface Area)

For Students 10th - 12th
In this ratio and surface area instructional activity, students find the ratio of surface area of one figure to another. They determine the length of sides and angles through similar figures. Students use trigonometric ratios to find the...
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Worksheet
Curated OER

Area of a Parallelogram

For Students 10th
In this area of a parallelogram worksheet, 10th graders determine the measurement of 10 different parallelograms illustrated. First, they multiply the base of the parallelogram times its height to determine the area. Then, students...
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Worksheet
Curated OER

Perimeter and Area of Rectangles (A)

For Students 4th - 6th
In this perimeter and area activity, students calculate the perimeter and area of rectangles that are measured in centimeters containing numbers with decimals. Students complete 4 problems.
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Lesson Plan
Curated OER

Linking Length, Perimeter, Area, and Volume

For Teachers 6th - 8th
Learners explore measurements of rectangles. For this measurement comparison lesson, students discover the length, width, perimeter, and area of two different rectangles. Learners record their measurements on a chart to make comparisons.
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Worksheet
Curated OER

Area of Squares and Rectangles

For Students 5th - 8th
In this math worksheet, learners complete 16 problems where they find the area of squares and rectangles with whole and decimal numbers. This worksheet would be an excellent homework assignment.
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Lesson Plan
Curated OER

Area-Time to Get in Shape

For Teachers 9th - 10th
Learners investigate the properties of triangles and parallelograms. In this geometry lesson, students calculate the formula used to find the are of a triangle and other polygons. They create a visual model to represent their findings.
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Lesson Plan
Curated OER

Area of Polygons

For Teachers 9th - 11th
In this geometry worksheet, students analyze the different properties of parallelograms related to their angles, sides and diagonals. There are 5 problems with an answer key.
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Lesson Plan
Improving Measurement and Geometry in Elementary Schools

The Sum of the Interior Angles of a Polygon

For Teachers 4th - 5th Standards
Junior geometers discover that polygons can be decomposed into triangles and that the number of triangles can be determined by a rule. Note that the Geometer’s Sketchpad® software is required to carry out all components of this...
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Lesson Plan
Curated OER

Areeas of Parallelograms and Triangles

For Teachers 12th
Twelfth graders are able to deduce the area of polygons by using several methods such as coordinate method. They are able to apply the area of polygons to real life situations. Students apply the Pythagorean Theorem in problem solving...
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Worksheet
Curated OER

How are Area and Perimeter of Rectangles Related?

For Students 6th
In this how are area and perimeter of rectangles related worksheet, 6th graders solve the area or perimeter of a second rectangle by using the information given.
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Lesson Plan
Curated OER

Tantalizing Tangrams

For Teachers 2nd - 4th
Students explore "area."  In this tangram geometry and measurement lesson plan, students arrange tangram pieces to find the area of characters presented in a story they listen to on a website.  Website information and related worksheets...

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