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Constructing Tangrams

For Teachers 7th
Seventh graders visualize and identify geometric shapes after applying transformations on a coordinate plane. In this tangrams instructional activity, 7th graders construct a set of tangrams and then answer extension questions related to...
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Pythagorean Theorem

For Teachers 7th - 12th
Students investigate the Pythagorean Theorem.  In this seventh through twelfth grade geometery lesson plan, students explore the Pythagorean Theorem and its converse and use it to find the length of the missing side of a right...
Worksheet
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Geometry: Basic Constructions

For Students 10th Standards
In this geometry worksheet, 10th graders use a straightedge and a compass to construct congruent segments and angles, bisect a segment and an angle, construct perpendicular and parallel lines, construct tangents, circumscribe a circle...
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Investigating the properties of a circle

For Teachers 7th - 10th
Students use wax paper to look at different properties of circles such as chords, tangent lines, inscribed angles, and inscribed angles in a semi-circle, as well as finding the center of the circle, and use GSP to investigate cyclic...
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Distance in Coordinate Geometry

For Teachers 9th - 10th
Students analyze distance and graphing. In this geometry lesson, students work problems on a coordinate grid calculating the distance. They apply the Pythagorean Theorem to their data and answer.
Worksheet
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The Right Angle

For Students 10th
In this geometry worksheet, 10th graders determine the answer to a vocabulary questions and then follow the give rules to place the answer in the appropriate place on the crossword grid.   The one page worksheet contains 18...
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Reflection

For Teachers 8th
Eighth graders use a stencil to make a figure with which they discover the horizontal line of reflection, the vertical line of reflection, and the diagaonal line of reflection using coordinates.
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Geometry of Triangles - Week 6

For Teachers 12th - Higher Ed
In this geometry of triangles worksheet, students find the length of sides, are, and angle measurement of inscribed triangles, pentagons, and midpoint of a line. This two-page worksheet contains seven problems.
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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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Reflection

For Teachers 4th - 6th
Students examine how some transformations, such as reflections and rotations, do not change the figure itself, only its position or orientation.
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As the Sun Burns

For Teachers 5th - 8th
Students examine the types of light the sun gives the Earth. They describe the electro-magnetic spectrum and how to protect themselves from different types of light. They identify the layers of the atmosphere as well.
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Slope Right Up

For Teachers 6th - 8th
Students use triangles to find the length and slope of each side. After connecting the vertices, they add points based on their specific instructions. They use the Pythagorean Theorem to complete a worksheet to end the lesson.
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Seeing Double

For Teachers 6th - 8th
Learners develop an intuitive definition for symmetry after viewing a PBS video. They examine asymmetrical patterns and demonstrate their knowledge by changing them to symmytrical.
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Effects of the Sun on Our Planet

For Teachers 5th - 8th
Students examine the effect of different types of light on the Earth. They discover the role of evaporation and the effects of the sun on the magnetosphere. They also observe different solar phenomena.
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Effects of the Sun on Our Planet (Grades 2-4)

For Teachers 2nd - 4th
Students observe how the sun's rays can cause evaporation and discuss its role in the weather cycle. They discover what the sun's energy brings to plants. They examine how different types of technology can enhance the amount of solar...
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Effects of the Sun on Our Planet (Grades 9-12)

For Teachers 9th - 12th
Students examine the Earth's magnetosphere and observe the effects of the sun's energy on it. They discover the difference between true north and magnetic north. They also explore how solar cells convert solar energy to electricity.
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Overhand Throwing

For Teachers 3rd - 5th
Students identify critical components of overhand throwing and demonstrate how to throw overhand properly. In this overhand throwing lesson plan, students throw in teams.
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Mapping The Iditarod

For Teachers 4th
Fourth graders watch a video about mapping distances and then calculate the distance their individual mushers travel each day. This occurs each Monday through Friday until each musher has crossed the finish line in Nome Alaska.
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Triangle Fundamentals Homework

For Students 9th - 10th
In this geometry worksheet, students identify the missing angles of non right triangles using the angle sum theorem. They solve for the unknown using algebra. There are 21 questions.
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Isosceles Triangles

For Teachers 9th - 10th
Students identify the properties of an isosceles triangle. In this geometry activity, students find the midpoint, median and angle bisector of a triangle. They construct angle bisectors and measure missing angles.
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The Proof

For Teachers 9th - 11th
Students will construct simple curves on graph paper by connecting a series of points between the vertical and horizontal axes. They share their designs and explain the patterns.
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Geometric Construction

For Teachers 7th
Seventh graders investigate some concepts associated with geometric shapes. They study the bisector segment and the perpendicular line to a given line. Students conduct analysis with the goal of deepening observation and deduction...
Worksheet
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Worksheet 27 - Fall 1995

For Students 11th - Higher Ed
In this math worksheet, learners find the area bounded by the tangent line, the x-axis, and the line x =2. They also describe the graph of the function.
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Quilt Geometry

For Teachers 7th
Seventh graders explore lines of symmetry, congruent polygons and patterns. They listen to "The Seasons Sewn," observe a PowerPoint presentation, and identify congruent polygons and visual patterns. Through an internet activity, 7th...

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