Lesson Plan
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Angles

For Teachers 7th - 12th
Learners measure angles using a protractor. In this geometry lesson plan, students solve for the missing angles using equations set to the theorem of triangles. They measure missing angles through construction and identify congruent angles.
Lesson Plan
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Scale Drawing

For Teachers 9th - 10th
Students use ratio and proportions to solve problems. In this geometry lesson, students apply ratio and proportions to real life scenarios.
Lesson Plan
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House Design and Installation of Products

For Teachers 7th - 8th
Young scholars design a "dream house" and plan to install flooring, tile and other products that are bought by a certain measurement. Problem solving be used in determining how much of each product to use and the total cost of each...
Lesson Plan
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Significant What?

For Teachers 9th - 12th
Students define accuracy and precision, and differentiate between the two terms, apply the concepts of accuracy and precision to a given situation and correctly apply the concept of significant figures to measurement and mathematical...
Lesson Plan
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Mr. Bo Jangle, What's Your Angle?

For Teachers 3rd
Third graders explore angles. In this geometry lesson plan, 3rd graders identify and define acute, obtuse, and right angles. Students form angles with their bodies, find angles in picture books, and record angles found outside in their...
Worksheet
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Tricky Triangle

For Students 9th - 12th
For this triangle worksheet, high schoolers solve 1 word problem about the lengths of a triangle. Students determine the length of the longest side given the ratio of the angle measures.
Interactive
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Yoplait with Areas and Volumes

For Students 9th - 12th
In this areas and volumes worksheet, students find the area of truncated cones and elliptical cylinders.  They find the area by using one of three methods:  the disk method, the shell method, and using geometry.  This...
Lesson Plan
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Triangles Congruency Theorems

For Teachers 10th
Tenth graders investigate the theorems of ASA, AAS, AAA and ASA. In this geometry lesson, 10th graders discuss the theorems of triangles and how it is used to solve for missing sides or angles. They review how two angles are formed by...
Lesson Plan
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Beads, Balls, and Beakers

For Teachers 10th - 11th
Students analyze the amount of space required to pack round objects. In this geometry lesson, students practice using space economically by practicing packing spheres into beakers. They then translate this concept to molecules being...
Lesson Plan
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Area

For Teachers 9th - 10th
Students solve problems involving area. In this geometry activity, students calculate the area of an object and relate it to the area of the ocean. They define what exactly and area is and then solve problems relating to the real world.
Lesson Plan
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Quadrilaterals

For Teachers 10th
In this geometry worksheet, 10th graders solve problems with quadrilaterals. They calculate the sum of the angles, find missing angles and identify properties of quadrilaterals. There are 16 questions with an answer key.
Lesson Plan
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The Value of Volume

For Teachers 9th - 11th
Students measure the perimeter and area of their polygons. In this geometry lesson plan, students calculate the volume and area using the correct tools. They calculate the time and temperature and the perimeter and side lengths of...
Lesson Plan
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Let the Sun Shine In: Energy Conservation

For Teachers 9th - 10th
Learners create a project applying their math skills as they discuss energy conservation. For this geometry lesson, students define vocabulary relating to the environment and energy conservation. They construct a building that allow lots...
PPT
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Chalkboard Challenge: Fifth Grade Math Review

For Teachers 4th - 5th
This PowerPoint addresses fifth grade math concepts, focusing mostly on geometry. The interactive math review game is in a "Jeopardy" style format and enables students to revisit the topics in geometry such as polygons, quadrilaterals...
Lesson Plan
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Perpendicular Segments in a Circle

For Teachers 9th - 12th Standards
High schoolers explore the concept of circles as they construct a circle using a program such as Cabri Jr. Learners construct a chord and a diameter that are perpendicular, then measure the bisected chord and notice that both sides of...
Worksheet
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Properties of Angles, Lines, and Triangles

For Students 10th
In this properties of angles, lines and triangles worksheet, 10th graders solve and complete 28 different problems that include determining the measurement of various figures shown. First, they use the geometric properties and theorems...
Worksheet
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Surface Area of Solids

For Students 10th
In this geometry worksheet, 10th graders calculate the surface area of solids given the sides or radius. There are 20 questions with an answer key.
Worksheet
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Area and Perimeter

For Students 10th
For this geometry worksheet, 10th graders are given real world problems dealing with are and perimeter. They solve using the formulas for area and perimeter. There are 3 problems.
Lesson Plan
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Points, Lines, and Distance

For Teachers 9th - 12th Standards
Students calculate the distance between two points. In this geometry lesson plan, students define the meaning of the distance between parallel lines. They find the point of intersection of other lines.
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Picking Pythagoras

For Teachers 6th - 9th
Students discover that side measurement is used in determining angle classification of a triangle. By squaring sides, they predict whether triangles be right, obtuse, or acute. They prove the Pythagorean Theorem and use it to solve...
Lesson Plan
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Wheeling It In!

For Teachers 3rd - 5th
Students use everyday materials (milk cartons, water bottles, pencils, straws, candy) to build a small-scale transportation device that incorporates the wheel and axle and the lever. They race their carts/trucks, measure distance, time...
Worksheet
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Circles

For Students 10th
In this circles worksheet, 10th graders solve and complete 20 different problems related to various circles. First, they find the radius and diameter of a circle with a given circumference. Then, students determine the measure of each...
Lesson Plan
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Triangle Conjectures

For Teachers 10th
Tenth graders investigate the theorems of ASA, AAS, AAA and ASA. In this geometry instructional activity, 10th graders discuss the theorems of triangles and how it is used to solve for missing sides or angles. They review how two angles...
Lesson Plan
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Scale

For Teachers 9th - 10th
Students apply concepts of scales to solve problems. In this geometry lesson, students solve real world problems using scales, proportions and ratios. They predict the actual size of a model given the scale drawings.

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