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Lesson Plan
Curated OER

This Building is Tall

For Teachers 9th - 12th
Students calculate the perimeter of shapes. In this geometry lesson, students relate properties of polygons to the real world. They find length, midpoint and slope.
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Worksheet
Curated OER

Black Holes... What's inside IX

For Students 11th - Higher Ed
In this space science activity, students solve 7 problems related to black hole space and time. They answer questions related to the spacetime dimension.
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Lesson Plan
Curated OER

Right Triangles and The Unit Circle

For Teachers 8th - 10th
Learners solve right triangles using trigonometry. In this geometry lesson plan, students use the unit circle to identify different trig values. They identify the six trigonometric identities.
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Worksheet
Curated OER

Midpoint

For Students 10th
In this geometry worksheet, 10th graders use the concept of midpoint of a line segment to solve problems in which they determine the length of the indicated segments.  The one page worksheet contains twelve problems, including a...
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Lesson Plan
Curated OER

Special Right Triangles

For Teachers 9th - 10th
Students identify different types of special right triangles. In this geometry lesson, students differentiate between right triangles and isosceles triangles. they construct the triangles using geometry software and make conjectures...
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Lesson Plan
Curated OER

Exploring Geometric Mean

For Teachers 8th - 10th
Students solve problems using geometric means. In this geometry lesson, students create altitudes in right triangles. They use Cabri software to move the triangle around and observe different sides and angles.
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Lesson Plan
Curated OER

Exploring Geometric Mean

For Teachers 8th - 10th
Student identify the solution using geometric mean. For this geometry lesson, students create right triangles where the altitude of the triangle is the side containing the right angle. They modify shapes using Cabri software and observe...
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Lesson Plan
Curated OER

Can You Make a Hole in One?

For Teachers 8th - 11th
Young scholars relate miniature golf to reflection of an image. In this algebra instructional activity, students collect and graph data as they study linear equations. They apply properties of graphing to solve real life scenarios.
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Worksheet
Curated OER

Trigonometry

For Students 11th - 12th
In this trigonometry learning exercise, students find the missing angles for given triangles. They use the trigonometric ratios to solve the problems.
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Lesson Plan
Curated OER

Plenty of Pythagoras

For Teachers 5th - 8th
Using a twelve foot knotted rope, learners form a 3-4-5 right triangle. Following a discussion of observations about the lengths of the sides of the triangle, students use grid paper, scissors and a centimeter ruler to draw and measure...
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Lesson Plan
Curated OER

Tilted Squares and Right Triangles

For Teachers 5th - 6th
Students investigate squares. They generate patterns from structured situations and find a rule for the general term and express it using words and symbols. Students generate patterns from a rule and substitute values and formulas.
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Lesson Plan
Curated OER

Geometry Review

For Teachers 7th
Seventh graders explore basic geometric definitions involving angles, area, and circumference. To reinforce basic geometric concepts, they play a "lightning Flash" card game. Students discuss chores or jobs that require the use of...
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Worksheet
Curated OER

Mathematical Wackie Wordies

For Students 9th
In this word worksheet, 9th graders examine pictures and write a mathematical phrase to describe the picture.  This one-page worksheet contains 25 problems.  Answers are provided.
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Lesson Plan
Curated OER

Translating Transformations in Geometry

For Teachers 9th - 12th
Students create an image using given coordinates and evaluate how the coordinates change when a slide or rotation takes place.
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Lesson Plan
Curated OER

Finding Patterns in Fractals

For Teachers 7th - 8th
Students discover patterns and sequences. They use a website to explore patterns and fractals. Students share their discovery of fractals and their patterns with the class. They develop a list of patterns used in everyday life.
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Lesson Plan
Curated OER

The Corner Problem

For Teachers 11th - Higher Ed
Students explore the concept of the corner problem. In this corner problem lesson, students use the TI-NSpire to determine the maximum length a rod can be and still pass horizontally around a corner. Students use similar triangles to...
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Worksheet
Curated OER

New York State Testing Program Grade 8 Math Sample Test 2005

For Students 8th
In this New York state sample test learning exercise, 8th graders solve thirty-three sample math problems designed to help students prepare for the grade eight math test.  Tips for taking the test are provided.
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Lesson Plan
Curated OER

Surface Area of Cones

For Teachers 9th - 12th
Students find the surface area of cones. In this geometry lesson, students calculate the dimensions of each three-dimensional shape and use the correct formula to solve the problem. They relate concepts of cones to the real world.
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Lesson Plan
Curated OER

Surface Area of Pyramids

For Teachers 9th - 12th
Students identify the surface area of pyramids and other polygons. In this geometry instructional activity, students find the different measurements for the different parts of a polygon. They use the surface area formula to solve for the...
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Lesson Plan
Curated OER

Hang Time

For Teachers 9th - 12th
Young scholars simulate the motion of a fly ball with different winds. They use a partner to provide the simulated wind. Students draw a baseball diamond and the field on a piece of paper. They drag the pen across the paper to show the...
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Worksheet
Curated OER

Three Tangent Circles

For Students 9th - 12th
In this tangent circles worksheet, students use pi to solve a problem involving tangent circles.  This one-page worksheet contains 1 problem.  The answer is provided at the bottom of the page.
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Lesson Plan
Curated OER

A Lesson on the Root Spiral

For Teachers 9th - 10th
Students create lines and shapes with a compass and a straight edge. In this geometry lesson, students investigate square roots, irrational numbers and spirals. They explore nature to see the shapes representing mathematics and geometric...
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Lesson Plan
Curated OER

Vectors

For Teachers 11th - 12th
Students differentiate distance and displacement. In this physics lesson, students use formulas to calculate for displacement. They draw vectors using the grid.
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Lesson Plan
Curated OER

Mathematicians of the Month

For Teachers 7th
Seventh graders become familiar with the history and times which influenced a featured mathematician each month. Through Internet research, they gather information about a different mathematician each month. Students solve mathematical...