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Lesson Plan
Curated OER

Concurrent Lines in Triangles

For Teachers 9th - 12th
Students explore the concept of concurrent lines in triangles. In this concurrent lines in triangles lesson plan, students work in groups to investigate properties of concurrent lines in acute, right, and obtuse triangles. Students use a...
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Lesson Plan
Curated OER

A Perpendicular Pilgrimage

For Teachers 9th
Ninth graders design a safe passage through a 2-D obstacle. In this geometric math instructional activity, 9th graders engage in a hands on activity to better understand the concept of geometric and algebraic perpendicularity. Students...
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Worksheet
Curated OER

Quadratic and Linear Functions

For Students 11th
In this Algebra II worksheet, 11th graders review and apply the basic concepts for solving linear and quadratic equation. The one page worksheet contains twelve problems. Solutions are not provided. 
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Lesson Plan
Curated OER

Constructing Perpendiculars

For Teachers 9th - 10th
Learners construct perpendicular lines. In this geometry lesson, students use a compass and straight edge to do construction. They start from a point to a line.
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Lesson Plan
Curated OER

Tessellations

For Teachers 9th - 10th
Students create tessellations. In this geometry lesson, students use polygons to create different patterns by rotation. They identify the reasons for polygons to create the type of tessellation it does.
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Lesson Plan
Curated OER

Geometry in Football

For Teachers 8th - 10th
Students use the pythagorean theorem to solve problems. In this geometry lesson, students relate football to math and the coordinate plane. They calculate the perimeter, area and distance.
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Lesson Plan
Curated OER

Equations of Lines

For Teachers 10th - 11th
Students define slope, and practice finding the slope of lines through given points. They determine the angle of inclination. Students find the relationship between the slope and the tangent of the lines. Students determine special...
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Worksheet
Curated OER

Geometry, Word Search Puzzle

For Teachers 6th - 8th
In this math activity, students look for the words that are related to the math words used in the practice of geometry. They also practice spelling.
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Lesson Plan
Curated OER

6th Grade Geometry

For Teachers 6th
Sixth graders identify and analyze characteristics and properties of geometric terms using a digital camera, computer and photo presentation format to create a photo album.
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Lesson Plan
Curated OER

Exploring Centers of a Triangle: Part 1

For Teachers 9th - 11th
Students use problem solving skills, formal geometry, and The Geometer?s Sketchpad. They model and solve two real-world problems by constructing the in center and circumcenter of triangles.
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Lesson Plan
Curated OER

Determining the Uniqueness of a Circle

For Teachers 6th - 8th
Young scholars use this lesson to determine how circles are different from other shapes. In groups, they determine the accuracy of three theorems based on the uniqueness of circles. They use a software program to hypothesize about the...