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Lesson Plan
Curated OER

Area of Polygons

For Teachers 9th - 11th
Students engage in a lesson plan that is about the concept of polygons and focuses upon finding the area. They use formulas provided in the lesson plan in order to solve problems given by the teacher for independent practice. Geometric...
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Worksheet
Curated OER

Countdown Challenge: Similarity

For Students 7th - 8th
In this similarity worksheet, students use similar rectangles to find the length of a diagonal. They use symbols and write paragraphs to explain the problem. This one-page worksheet contains one similar problem with 13 related questions.
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Lesson Plan
Illustrative Mathematics

Downhill

For Teachers 7th - 9th Standards
A car traveling down a steep hill is the model for this resource. The confusion comes when the elevation, E, is given in terms of distance, d. The distance, d, is the horizontal distance from E. Therefore, the equation, E = 7500 – 250d,...
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Worksheet
Curated OER

Geometry

For Students 3rd - 5th
For this geometry review game worksheet, students use the provided game cards and calling cards to play a Bingo-like game. Students learn geometric terms while playing a group game.
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Worksheet
Curated OER

Trigonometry for AC Circuits

For Students Higher Ed
For this physics worksheet, students solve 23 trigonometry based problems. Students apply the Pythagorean Theorem in electricity calculations.
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Lesson Plan
Curated OER

Introducing Powers and Models

For Teachers 4th - 6th
Students construct two dimensional models to illustrate squared numbers. For this geometry lesson, students use graph paper and an x/y axis to build squares exponentially. Students identify powers and relationships between various...
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Lesson Plan
Curated OER

Geometry Straws

For Teachers 3rd - 8th
Students create different angles and shapes by using different lengths of straws. In this geometry straws lesson plan, students glue straws onto paper and define what they have made.
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Worksheet
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Curated OER

Trigonometry and the Calculator

For Students 10th
In this geometry worksheet, 10th graders use a graphing calculator to evaluate trigonometric functions and their inverses. The four page worksheet contains explanation, examples, and twenty questions. Answers are not included.
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Lesson Plan
Curated OER

Octagon Lesson Plan

For Teachers 10th - 11th
Students investigate octagons using words and shapes. In this geometry lesson, students discuss the shape of an octagon using physical and symbolic models. They make conjecture about the shape and relate it to the real world.
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Lesson Plan
Curated OER

Distance Formula

For Teachers 1st - 11th
Students calculate the distance between two points using the distance formula. In this geometry lesson, students derive the distance formula using the Pythagorean Theorem.
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Lesson Plan
Curated OER

Geometry, Measurement & Reasoning

For Teachers 7th - 9th
Young scholars measure prisms and determine their volume. For this measurement and reasoning lesson, students estimate the volume and area of prisms. They measure given boxes. Young scholars use paper to create prisms and cylinders. They...
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Worksheet
Curated OER

Similar Polygons

For Students 10th
In this similar polygons instructional activity, 10th graders solve and complete 20 various types of problems. First, they solve each proportion. Then, students write a ratio expressing the slope of a line through each pair of points. In...
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Worksheet
Curated OER

Volume and Surface Area of Polyhedrea

For Students 8th - 11th
For this volume and surface area worksheet, learners use given formulas to determine the volume and area of polyhedrea. This four-page worksheet contains examples, explanations and 32 problems. Answers are provided on the fourth page.
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Lesson Plan
Curated OER

Naming Shapes

For Teachers 4th - 6th
Students study geometric shapes and practice naming them properly. In this geometry activity, students work in groups to give definitions of the vocabulary to each other in their own words. Students also visit a lower grade and teach...
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Lesson Plan
Curated OER

Equation of a Circle

For Teachers 9th - 12th Standards
Students write the equation of a circle. In this geometry instructional activity, students check the solution of a coordinate pair by evaluating them. They graph the circle given the equation and radius.
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Lesson Plan
Curated OER

Simply Symmetry

For Teachers 3rd - 4th
Students are introduced to the concept of symmetry by examining different shapes and folding them into equal halves. They work in small groups focusing on finding the lines of symmetry of one specific shape. A symmetry booklet is made by...
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Lesson Plan
Curated OER

Regular Pyramids

For Teachers 10th
In this Geometry worksheet, 10th graders solve problems involving the properties of a regular pyramid.  The one page worksheet contains two multiple choice questions.  Answers are included. 
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Lesson Plan
Texas Instruments

The Leaning Tower of Pisa

For Teachers 9th - 12th Standards
Learners estimate the equation of a line, angle of elevation and depression in this math lesson. They analyze e famous landmark design and make connections to algebra and geometry. They will also generate an equation, model the x and y...
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Worksheet
Curated OER

Quadrilaterals

For Students 3rd - 5th
In this solving quadrilateral word problems worksheet, students apply knowledge of congruent shapes to problem solve. Students solve six problems.
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Lesson Plan
Curated OER

Math Challenge

For Teachers 10th - Higher Ed
Students challenge their math knowledge through a series of lessons designed to engage critical thinking and reasoning skills. In these problem solving lessons, students work with the Pythagorean Theorem, time zones in different regions...
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Worksheet
Curated OER

Regular Pyramids

For Students 10th
In this Geometry worksheet, 10th graders solve problems involving the properties of a regular pyramid.  The one page worksheet contains a combination of three multiple choice and free response questions.  Answers are included. 
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Worksheet
Curated OER

Geoboard Activity

For Students 10th
In this geometry worksheet, 10th graders use geoboards or the grid representation of a geoboard to construct the indicated geometric figure. The three page worksheet contains twenty-seven questions. Answers are not included.
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Interactive
Curated OER

SAT Practice Test

For Students 10th - 12th
In this online, interactive worksheet, students solve ten SAT preparation problems in 12 minutes. The problems vary in difficulty and content.
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Worksheet
Curated OER

The Corners of a Square

For Students 10th
In this geometry worksheet, 10th graders cut the corners off of a square so that a regular octagon remains.  Students determine the length of each side of the octagon.  The one page worksheet contains one problem with the solution. 

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