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Triangles with Collinear Circumcenters

For Teachers 9th - 10th
Learners identify the circumcenter of a triangle. For this geometry lesson, students construct a perpendicular bisector using a straight edge and a compass. They differentiate between triangles and collinear points.
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Exploring Special Lines

For Teachers 9th - 10th
Students compare and order numbers. In this geometry instructional activity, students write equations for inequalities. They differentiate and apply concepts of triangular properties to solve problems.
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Inscribed Quadrilaterals and Parallelograms

For Teachers 9th - 10th Standards
Students differentiate between inscribed quadrilaterals and parallelograms. In this geometry lesson, students identify the shaped of the polygons when it is inscribed inside of a circle. They calculate the missing angles of the inscribed...
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Exploring the Slopes of Parallel and Perpendicular Lines

For Teachers 8th - 10th
Learners calculate the slope of parallel and perpendicular lines.In this algebra lesson, students differentiate between parallel and perpendicular lines. They graph their lines using the slope of the equation.
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Exploring the Slopes of Parallel and Perpendicular Lines.

For Teachers 8th - 10th
Students find the slopes for perpendicular and parallel lines. In this geometry lesson, students differentiate between parallel and perpendicular lines. They use Cabri software to create lines to compare.
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Pythagorean Theorem: Triangles and Their Sides

For Teachers 8th - 10th
Pupils investigate triangles and their relationship to each other. In this geometry lesson, students solve right triangles using the properties of the Pythagorean Theorem. They differentiate between right, acute, straight and oblique...
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Investigating Trigonometric Ratios Through Similar Right Triangles.

For Teachers 8th - 10th
49Pupils 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
Young scholars 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.
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Geometric Basketball Court

For Teachers 8th - 10th
Students calculate the area and perimeter of a basketball court. In this geometry lesson, students differentiate between similarity and congruence of geometric objects. They test conjectures and use it to solve problems.
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Making Parallel Lines

For Teachers 8th - 10th
Students differentiate between parallel and perpendicular lines. In this geometry lesson, students make conjectures and apply it to solve real life situations. They collect data and make predictions based on the data.
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Studying Special Segments in Triangles

For Teachers 8th - 10th
Students investigate special segments in triangles. In this geometry lesson, students graph, compare, estimate and predict findings based on their data. They differentiate between similarity and congruence of triangles.
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Mathematics in Robotics

For Teachers 10th - 12th
Students build and create using math. In this geometry lesson, students differentiate between congruent and similarity as they observe polygons. They create robots with different functions using properties of geometry.
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Hit Me If You Can!

For Teachers 8th - 11th
Students graph linear equations using slopes and intercepts. For this algebra lesson, students identify the slope as being positive,negative or undefined. They differentiate between different quadrants on a coordinate plane.
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Will Exams Be Cancelled?

For Teachers 8th - 11th Standards
If the flu outbreak continues, exams will have to be canceled. Investigate the properties of exponential and logarithmic functions. In this algebra lesson, students use the TI to examine and differentiate between exponential growth and...
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Linear and Nonlinear Functions

For Teachers 8th - 10th
Learners identify properties of a line. In this algebra lesson, students differentiate between functions and nonfunctions. They use the slope and y intercept to graph their lines.
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Camping with a Triangular Prism and Its Net

For Teachers 8th - 10th
Students differentiate triangular prisms from other prisms using nets. In this geometry lesson, students define the properties of a triangular prism and its symmetry. They build a triangular prism moving lines around.
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Pyramids on Parade/Nets

For Teachers 8th - 11th
Learners sketch the shape of three dimensional pyramids using nets. For this geometry lesson, students differentiate a pyramid from other three dimensional shape. They define the attributes of pyramids.
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Quadrilateral Bunny

For Teachers 9th - 11th
Students identify the properties representing quadrilateral. In this geometry instructional activity, students differentiate between special and regular quadrilaterals. They discuss and demonstrate hierarchy of quadrilaterals.
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Similar Triangles - Applied Problems

For Teachers 9th - 12th
High schoolers 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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Sketching Prisms

For Teachers 9th - 12th
Students sketch and create nets of different polygons.In this geometry lesson plan, students differentiate prisms from other three-dimensional shapes. They define the properties of prisms.
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A Sphere and Its Net

For Teachers 8th - 12th
Students identify and sketch the nets for sphere. In this geometry instructional activity, students differentiate between two and three dimensional shapes. They find the surface area of each sphere.
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Sum of Interior/Exterior Angles with Wilbur

For Teachers 7th - 10th
Students identify the interior and exterior measures of polygons. In this geometry lesson, students identify the formula for interior angles of polygons. They differentiate between triangular and polygons angles.
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Absolute Maximum and Minimum

For Teachers 9th - 11th
Students calculate the maximum and minimum of each function. In this algebra lesson, students collect and graph data to analyze it. They differentiate between the absolute max and min and the maxima and minima of each function.
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The Sum of All Angles

For Teachers 7th - 10th
Pupils add up the different angles using the angle addition postulate. In this geometry lesson, students differentiate between interior and exterior angles. They calculate the different angles for triangles and use proof to show their...

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