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Exploring Properties of Rectangular Prisms

For Teachers 8th - 10th
Young scholars explore the properties of rectangular prisms. In this geometry instructional activity, students identify properties of two and three dimensional shapes. They use Cabri technology to create polygons and solve problems.
Lesson Plan
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Constructing Perpendiculars

For Teachers 9th - 10th
Students construct perpendicular lines. In this geometry lesson plan, students use a compass and straight edge to do construction. They start from a point to a line.
Lesson Plan
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Why can't We Use SSA to Prove Triangles Congruent?

For Teachers 9th - 10th
Students investigate triangles and congruences. In this geometry instructional activity, students differentiate between inductive and deductive reasoning. They differentiate between similar and congruent triangles.
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Investigating Trigonometric Ratios Through Similar Right Triangles.

For Teachers 8th - 10th
49Students investigate the properties of right triangles. In this geometry lesson, students differentiate between similar and congruent triangles. They use the Pythagorean Theorem to find the missing angles and sides.
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Investigating Trigonometric Ratios Through Similar Right Triangles

For Teachers 9th - 10th
Students identify similar and congruent right triangles. In this geometry lesson, students use trigonometric ratios to identify missing sides and angles of a triangle. They differentiate similar and congruent triangles.
Worksheet
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Polygons and Sketching

For Students 8th - 10th
In this geometry worksheet, students define and draw quadrilaterals. They differentiate between the different shapes. There are 3 questions with an answer key.
Lesson Plan
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Triangle Exterior Angles Theorem

For Teachers 7th - 9th
Students identify the measure of missing exterior angles. In this geometry lesson,students define and apply the exterior angle theorem to solve problems. They use Cabri software to create different angles and make investigations.
Lesson Plan
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Fractals Rock

For Teachers 9th - 11th
Students identify the repeated sequences of a pattern. In this geometry lesson, students identify fractals in patterns and nature. They construct a fractal tree and make conjectures.
Lesson Plan
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Fractals Rock: Investing the Fractal Tree

For Teachers 9th - 10th
Students investigate the relationship between fractals and sequences. In this geometry lesson, students build a fractal tree. They investigate different career fields where fractals are used in the real world.
Lesson Plan
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Koch Snowflake

For Teachers 9th - 10th
Students investigate Koch's Snowflake. In this geometry lesson, students identify the properties of creating Koch's snowflake. They solve problems dealing with fractals and patterns.
Lesson Plan
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Fractals: Koch Snowflake

For Teachers 9th - 11th
Students investigate the properties of Koch's snowflake. In this geometry lesson plan, students investigate fractals and patterns. They create Koch's snowflake using Cabri software.
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The Dragon Curve Fractal

For Teachers 8th - 11th
Learners identify the properties of a dragon curve. In this geometry instructional activity, students identify sequences and patterns as they solve fractals. They investigate patterns found in nature.
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Dream Bedroom Floor Plan

For Teachers 9th - 10th
Students build and apply concepts of geometry. In this geometry lesson, students create a building using proportions and scale drawings. They use Cabri technology to create a virtual drawing first.
Lesson Plan
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Investigating the Sierpinski Triangle

For Teachers 9th - 11th
Young scholars solve and analyze the sierpinski's triangle. In this geometry lesson plan, students identify properties and theorem of triangles. They solve problems involving angles and sides of triangles.
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The Sierpinski Triangle

For Teachers 9th - 10th
Students investigate the Sierpinski triangle. In this geometry lesson plan, students define fractal curves and its relationship to triangles. They identify repeating sequences and relate it to fractals.
Worksheet
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Find the Area or Missing Length of the Polygon

For Students 7th - 10th
In this area and perimeter activity, students find the length or area of seventeen figures.  The figures examined are triangles, trapezoids, parallelograms, rectangles, and hexagons.  Some examples and solutions are provided.
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Bisectors of Triangles

For Teachers 10th
In this geometry worksheet, 10th graders solve problems involving the perpendicular bisectors and angle bisectors of a triangle and their points of concurrency.  The one page worksheet contains sixteen questions.  Answers...
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Exploring the Hinge Theorem

For Teachers 9th - 10th
Learners explore the application of Hinge Theorem. In this geometry lesson, students write inequalities, given two sides of a triangle. They solve problems with triangular inequalities using the proper theorem.
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Side Splitter Triangles

For Teachers 8th - 11th
Students investigate the side splitter theorem. In this geometry lesson, students estimate and solve problems dealing with ratios and proportions. They identify angles created by lines that are parallel.
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Dream Bedroom Floor Plan

For Teachers 9th - 10th
Students construct using Cabri software. In this geometry lesson, students convert between units and apply the correct measurements to build objects. They create the room virtually and manipulate the shapes to the desired measurements.
Lesson Plan
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Compound Locus

For Teachers 7th - 10th
Students investigate circles and compound locus. In this geometry lesson, students identify the distance from a point to a line. They use Cabri software to create lines and circles.
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Pick's Theorem

For Teachers 9th - 10th
Students investigate Pick's theorem by completing a lab. In this geometry lesson, students construct polygons using cabri software. They calculate the area of polygons and identify the vertices of each shape.
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Examining Geometric Solids

For Teachers 7th - 10th
Students explore geometry by completing a math worksheet in class. In this shape identification lesson, students identify the characteristics associated with 15 solid geometric shapes. Students identify patterns between vertices, edges...
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Daily Upkeep 7

For Teachers 4th
In this geometry worksheet, 4th graders complete a quick set of math activities where they first identify which portion of a model is shaded in fraction form. Then, they select which angle best describes a given angle. Finally, students...

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