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Distance and Functions
Pupils calculate the distance using the distance formula. For this geometry lesson, students identify the distance a taxi cab travels. They relate distance to functions and relate it to the real world.
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Strongest Polygon
Pupils define and identify shapes by name. In this geometry lesson, students construct, identify and compare polygons based on the number of sides. They classify each shape based on their angle sum theorem.
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Fractal Fern
Students identify the location of coordinate pairs of an image. In this geometry lesson, students perform transformation and identify the image and pre-image point of location. They apply the concept of fractals to complete the...
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Obtuse Triangles
Fourth graders explore obtuse triangles. In this geometry lesson, 4th graders make obtuse triangles with paper and scissors. They determine how to find the center of their triangle.
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Ara of Circles
Students identify the differentiate the different properties of circles and parallelograms. In this geometry instructional activity, students calculate the area of each solid and identify the formula. They relate Pi to the circumference...
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Congruence with Robot Gobot
Students identify the properties of solids and polygons. For this geometry lesson, students identify the different measurements of a triangle. They use congruence parts and theorem to prove their answer.
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Angle Action 1,2 and 3
Young scholars investigate angles through construction. For this geometry lesson, students use a protractor to identify the measurement of an angle. They identify angles cut by a transversal and two parallel lines.
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Area Of Sectors
Student find the area of a sector of a circle. In this geometry instructional activity, high schoolers define the sector of a circle using a sketch. They find and identify examples of sector in the real world.
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Pyramids- Slant Height and Altitude
Students calculate the height and altitude of a pyramid. In this geometry lesson, students define the parts that make up a pyramid. They use the Pythagorean Theorem to find the missing parts of a pyramid.
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Radius, Diameter and Area
Pupils identify the radius and diameter of a circle. In this geometry lesson plan, students calculate the volume and area of a cylinder and circle. They relate the circumference of a circle to Pi.
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"Geotown" Scrapbook
Students create a scrapbook. In this geometry lesson, students use digital cameras to take pictures of geometrical concepts. Students use the pictures to create a "Geotown" scrapbook.
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Quadrilateral Review
Pupils identify the properties of quadrilaterals. In this geometry lesson, students investigate the history of quadrilaterals and different types of quadrilaterals. They identify the length and mid-segment of each shape.
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Similar Triangles - Applied Problems
Pupils differentiate between similar and congruent triangles. In this geometry lesson, students identify the angles of triangles using the similarity theorem. They apply concepts of triangles to the real world.
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Crop Circles
Students calculate the area and circumference of a circle. In this geometry lesson, students solve word problems with circles and create formulas to calculate the area. They find the rate and complex area of a circle.
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Calculating Distances in Two and Three Dimensions
Young scholars use the Pythagorean Theorem to solve problems. In this geometry lesson, students solve for the distances by calculating the different parts of the shape of a two and three dimensional shape. They reason by analogy.
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Unit Circle and Triangle
Young scholars apply the Unit Circle to solve ratios of triangles. In this geometry lesson, students derive the different ratios of a triangle using the Pythagorean Theorem. They find the angles of a unit circle using a right triangle.
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Graphing Coordinates
Sixth graders practice graphing coordinates. In this geometry lesson, they use the x and y axis to locate points that must be connected in the right sequence to form a straight line.
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Using Geometric Shapes in Architecture
Third graders identify two and three dimensional shapes used in architectural designs by viewing images on the Internet. In this geometry lesson, 3rd graders create their own building designs and identify the geometric shapes that will...
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Congruent and Similar figures
Eighth graders explore congruent and similar figures. In this eighth grade geometry lesson, 8th graders use geoboards to create congruent and similar figures and explore the relationships between the sides and angles.
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Surface Area of Cubes and Rectangular Prisms
Eighth graders calculate surface area of 3-D shapes. In this geometry lesson, 8th graders analyze cubes and prisms by finding their area and surface area. They compare the data of these two shapes.
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How are Trig Ratios Used to Measure Triangle Sides
Students identify the ratios of trig identities. In this geometry lesson, students solve the missing sides and angles of triangles using trig ratios. They relate the graphs and waves to real life scenarios.
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The Search for Pythagoras' Treasure
Students identify and define properties of triangles. In this geometry lesson, students identify the missing sides and angles of right triangles. They use the rules of the Pythagorean Theorem to solve their problems.
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Proportional Similarities
Pupils model the geometric relationship with graphing. In this geometry lesson, students differentiate between parallel, perpendicular, similar and congruent shapes. They use properties of polygons to differentiate their shapes correctly.
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Pythagorean Theorem
Students apply properties of Pythagorean to solve problems. In this geometry lesson, students identify the different parts of a right triangle using ratios. they solve problems using squares and square roots.
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