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#### Investigating Trigonometric Ratios Through Similar Right Triangles.

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.

Lesson Planet

#### Investigating Trigonometric Ratios Through Similar Right Triangles

Students identify similar and congruent right triangles. In this geometry instructional activity, students use trigonometric ratios to identify missing sides and angles of a triangle. They differentiate similar and congruent triangles.

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#### Whatcha Gunna Do When the Hulkster's Measuring Too??

Young scholars measure using tools they have made. In this algebra lesson, students measure the height and distance using non-traditional measuring methods. They apply their findings to algebra and trigonometry properties of measurements.

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#### This Building is Tall

High schoolers calculate the perimeter of shapes. In this geometry lesson, students relate properties of polygons to the real world. They find length, midpoint and slope.

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#### Interference of Waves

Students explain how wave interference occur. In this physics lesson, students investigate sound interference using a computer software. They differentiate constructive and destructive interference.

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#### Angular Solution of Hydrogen Atom

Students participate in an angular solution of hydrogen activity. Using this activity, students also illustrate eigenvalue problems applied in mathematics. They explore Schrodinger's equation and particle wave duality.

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#### Lesson- Infinite Potential Well

Student create a numerical model which integrates Schrodinger's equation in 1 dimension. They discuss the properties of the solutions which match the boundary conditions. Student discusss any limitations if there are any in there model.

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#### Physics: Angular Solution of Hydrogen Atom

Students discover the angular solution of hydrogen activity. Depending on the undergraduate course, this activity can illustrate eigenvalue problems, to introduce Shrodinger's equation and particle wave duality, or to introduce...

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#### Trigonometric Applications Outside the Classroom

Fifth graders describe and demonstrate how trigonometry can be used to find the height of a tall building or tree. They describe and demonstrate how trigonometry can be used to find the height of a high hill, or other high object where...

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#### Exploring Centers of Triangles

Students explore properties of triangles using angle bisectors, incenters, circles, midpoints, and altitudes. They use Geometer's Sketchpad in order to create triangles and their properties.

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#### Calculus: Graphical, Numerical, Algebraic

Students explore the interplay between the geometric and analytic information and on the use of calculus both to predict and to explain the observed local and global behavior of a function. They write a paragraph describing any...

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#### Mathematical Methods (CAS) 2002 Examination 2

Students use CAS to solve problems. In this secondary mathematics lesson, students are provided with question to be solved using CAS.

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#### Vectors

Students differentiate distance and displacement. In this physics lesson, students use formulas to calculate for displacement. They draw vectors using the grid.