Lesson Plan
Curated OER

Count the Squares and Compare

For Teachers 4th
Fourth graders construct squares and rectanges in order to help them find areas and perimeters. They gain an understanding of area and perimeter through teacher modeling and then they construct squares and rectangles.
Lesson Plan
Curated OER

Measurement: Lesson 2

For Teachers 8th
Eighth graders complete math problems given in this lesson plan, where they find the perimeter and area of specific figures. They estimate the perimeter and area of shapes and figures and then complete the mathematical formula to find...
Worksheet
Curated OER

Rectangles That Are Related

For Students 4th
In this rectangles worksheet, 4th graders draw a rectangle with the same area as one displayed on the worksheet and then find the perimeter of each.
Lesson Plan
Curated OER

Measurement: Lesson 2

For Teachers 4th
Fourth graders find the perimeter of a geometric shape by adding the lengths of the sides. They find the area of a square or rectangle by counting square units. Students use multiplication to find the area of a rectangle. They estimate...
Lesson Plan
Curated OER

Care Homework #2

For Teachers 10th - 11th
In this Care Homework worksheet, students solve a variety of multiple digit addition, subtraction, multiplication, and division problems that include fractions, decimals, and percentages. They demonstrate knowledge of geometric formulas...
Lesson Plan
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Shape Makes a Difference!

For Teachers 3rd - 6th
Students learn the difference between perimeter and area by watching a video and a hands on activity.
Lesson Plan
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Daily Upkeep 8

For Teachers 4th
In this math worksheet, 4th graders complete a quick set of math problems where they first look at two rectangles and find the difference between the two in centimeters. Then, they compare two figures are select which fraction best...
Lesson Plan
Curated OER

Construct Figures to Find Specific Volume

For Teachers 6th
Sixth graders use number cubes to explore volume of two-dimensional shapes. They roll a die and construct a shape using the numbers rolled as measurements of the sides. They estimate the volume of a given object, and then use the...
Lesson Plan
Curated OER

Building Models

For Teachers 5th
Fifth graders build models. In this measurement lesson, 5th graders build paper models to represent square centimeters, square inches, square feet, cubic centimeters, cubic inches, cubic feet, and perimeter.
Worksheet
Curated OER

Measurements in My Home!

For Students 1st - 3rd
For this math worksheet, students measure the length, width and perimeter of objects in their home (window, rug, table, blanket, door, refrigerator and student's choice). They notate their findings and make a little book.
Lesson Plan
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Building Storm Shelters

For Teachers 6th
Sixth graders explore area and perimeter. In this online interactive area and perimeter instructional activity, 6th graders investigate why the perimeter of rectangles can vary considerably even when the area is held constant. Students...
Worksheet
Curated OER

Area of Compound Shapes

For Students 5th - 6th
For this compound shapes worksheet, students solve 40 problems in which the area and perimeter of compound shapes is calculated. There are instructions and examples on this page, which is intended to be used on-line, but can be completed...
Lesson Plan
Curated OER

Area of Rectangles and Triangles

For Teachers 8th
Eighth graders practice calculating the perimeter of different shapes. As a class, they work together to calculate the area of rectangles and triangles using the proper formula. To end the lesson, they determine how many feet are in a...
Lesson Plan
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Infinite Secrets

For Teachers 9th - 12th
Students duplicate the method that Archimedes used to estimate the value of pi. They complete a data table and find the approximate values of pi for three sets of polygons.
Worksheet
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Right Triangles

For Students 10th
In this right triangles worksheet, 10th graders solve and complete 12 different types of problems. First, they solve for a variable given each of the right triangles with the sides as indicated. Then, students determine the shorter...
Lesson Plan
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Geometry: Area Project

For Teachers 6th
Sixth graders identify and use area formulas for finding the area of geometric shapes.
Lesson Plan
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Area of Complex Figures

For Teachers 5th
Fifth graders use formulas for calculating areas of squares and rectangles to find area of complex figure, compare their own ideas with their classmates' ideas, and recognize that there are multiple methods for finding area of complex...
Lesson Plan
Curated OER

Applications and Problem Solving

For Teachers 6th - 8th
In this math worksheet, middle schoolers solve the problems after translating them into algebraic expressions. Special attention is paid to converting the measurement units.
Worksheet
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Algebraic Equations

For Students 9th
In this algebraic equations worksheet, 9th graders solve 10 different problems that include solving various types of algebraic equations. First, they determine the equation of a line and solve the absolute value of an inequality shown....
Lesson Plan
Curated OER

Care Homework #1: Real Numbers

For Teachers 6th - 8th
In this care homework worksheet, students add, subtract, multiply and divide numbers with decimals.  They solve problems involving mixed numbers.  Students find the area and perimeter of triangles and rectangles.  This...
Worksheet
Curated OER

Value of Triangles

For Students 9th - 10th
In this geometry activity, students identify the missing sides and angles of triangles. They find the midsegment of each triangle. There are nine questions with an answer key.
Lesson Plan
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This Building is Tall

For Teachers 9th - 12th
Pupils calculate the perimeter of shapes. In this geometry instructional activity, students relate properties of polygons to the real world. They find length, midpoint and slope.
Worksheet
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Parallel Lines and Proportional Parts

For Students 10th
In this parallel lines and proportional parts worksheet, 10th graders solve 6 problems that include applying the theorems involved in proportional parts of triangles. First, they identify and describe each theorem. Then, students find...
Lesson Plan
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Geometry Practice: Area of Polygons #3

For Teachers 7th - 9th
Students find the area of two parallelograms. One answer is multiple choice, the other is a short answer. Students graph four lines, and find the area of the parallelogram formed by these lines. Students explain the angle that will give...