Lesson Plan
Curated OER

Learning by Logic - Total Surface Area

For Teachers 3rd - 6th
Geometers calculate the area of plane surfaces using the formulas for the area of a square, rectangle, and triangle. They develop the formula for calculating the total surface area of two geometric solids: the cube and rectangular prism.
Worksheet
Curated OER

Countdown Challenge: Area of Basic Shapes

For Students 7th - 8th
In this basic shapes worksheet, students use formulas to determine the area of given figures. They compute the area of composite figures and subtract the area of shaded areas. This one-page worksheet contains 12 problems.
Learning
School Mathematics Project

Resource Sheets

For Students 4th - 8th Standards
This extensive and far-reaching collection of worksheets puts a new twist on many basic concepts. Learners use multiplication to trace a path from one point to another, tile a plane by converting between improper and proper fractions,...
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
Curated OER

Area of Composite Polygon

For Teachers 8th
Eighth graders are shown a blueprint of a house and must determine the amount of carpet needed. In groups, they calculate the area of rectangles and triangles and apply them to the shapes in the blueprint. To end the lesson, they...
Lesson Plan
Curated OER

Area And Perimeter Using Pentominoes

For Teachers 3rd
Third graders engage in an enrichment lesson plan exploring the concepts of area and perimeter. They construct new pentominoes that are 3 times the size of normal ones and then identify the area and perimeter measurements. They then...
Worksheet
Raytheon

Geometry: Perimeter and Area

For Students 5th - 8th
For 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

Perimeter and Area

For Teachers 7th
Seventh graders develop strategies for finding the perimeter and area of large geometric figures. Through lecture and guided practice, 7th graders practice the strategy of dividing a geometric shape into smaller more manageable shapes...
Unit Plan
Mathematics Vision Project

Circles: A Geometric Perspective

For Teachers 10th - 12th Standards
Circles are the foundation of many geometric concepts and extensions - a point that is thoroughly driven home in this extensive unit. Fundamental properties of circles are investigated (including sector area, angle measure, and...
Unit Plan
Mathematics Vision Project

Module 5: Modeling with Geometry

For Students 9th - 12th Standards
Solids come in many shapes and sizes. Using geometry, scholars create two-dimensional cross-sections of various three-dimensional objects. They develop the lesson further by finding the volume of solids. The module then shifts...
Lesson Plan
Curated OER

Review of Triangles

For Teachers 8th - 10th
Students investigate the Pythagorean Theorem. In this geometry lesson plan, students define angles and sides of right triangles. They calculate the area and surface area using formulas derived by the Pythagorean Theorem.
Worksheet
Curated OER

Find the Area or Missing Length of the Polygon

For Students 7th - 10th
In this area and perimeter worksheet, students find the length or area of seventeen figures.  The figures examined are triangles, trapezoids, parallelograms, rectangles, and hexagons.  Some examples and solutions are...
Worksheet
Curated OER

Area and Perimeter

For Students 10th
For this geometry worksheet, 10th graders use single variable equations to solve problems focusing on area and perimeter of triangles, trapezoids, parallelograms, rectangles, and hexagons.  The one page worksheet contains seventeen...
Worksheet
Curated OER

Perimeter and Area

For Students 9th
In this perimeter and area instructional activity, 9th graders solve 17 various types of problems, mostly word problems related to determining the area or perimeter of a geometric shape. They also determine the area and perimeter of...
Worksheet
Curated OER

Area and Perimeter of Various Shapes

For Students 5th - 6th
In this area and perimeter worksheet, students find perimeter and area of 6 given shapes. An answer key and website reference are included.
Lesson Plan
Curated OER

Perimeter and Area of 2D Shapes

For Teachers 6th - 7th
Students find the perimeter and area of circles, triangles, and rectangles. In this perimeter and area lesson, the teacher gives students formulas for each shape and measurement and works through examples on the board. While no creative...
Worksheet
Curated OER

Area, Perimeter and Volume

For Students 7th - 8th
In this area, perimeter and volume worksheet, students solve and complete 12 various types of problems. First, they calculate the value for each variable in the triangle shown. Then, students find the distance of the ladder against a...
Worksheet
Curated OER

Law of Sines and Law of Cosines

For Students 11th - 12th
For this Pre-calculus/Trigonometry worksheet, students use the laws of sines and cosines to solve triangles. The four page worksheet contains thirteen problems. Answers are not included.
Lesson Plan
Curated OER

In the Path of the Ancients: Unearthing Formulas for Area

For Teachers 9th - 12th
Students apply the formulas for the area of parallelograms and triangles. Through guided practice, students discover the correct way to apply the formulas. Working in pairs, they write their own problems featuring the formulas.
Lesson Plan
Curated OER

Perimeter and Area of Rectangles

For Teachers 6th
Sixth graders solve for the area and perimeter. In this geometry lesson, 6th graders investigate polygons and use a formula to find the area and perimeter. They find the area and perimeter of various polygons.
Worksheet
Curated OER

Area and Perimeter of Various Shapes (H)

For Students 5th - 10th
In this area and perimeter worksheet, learners find the area and perimeter of various shapes with numbers containing decimals. Students complete 6 problems.
Worksheet
Curated OER

Trigonometric Ratios

For Students 10th - 12th
In this trigonometric ratios worksheet, learners determine the value of trigonometric ratios.  They find the area of triangles, determine the length of one side, and compute the degrees in an angle.  This five-page worksheet...
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

Measuring Perimeter

For Teachers 5th
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...