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ResourceSpotlight
Students will construct figures that prove the Pythagorean Theorem in two different ways.
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Texas Instruments, Inc.
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ResourceSpotlight
Students will explore the relationships between an angle bisector and segments in a triangle. They will determine the distances from an angle bisector to the sides of the bisected angle. In a triangle, proportional relationships occur when an angle bisector divides the opposite side into two parts.
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Texas Instruments, Inc.
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ResourceSpotlight
Students will explore the relationships between an angle bisector and segments in a triangle. They will determine the distances from an angle bisector to the sides of the bisected angle. In a triangle, proportional relationships occur when an angle bisector divides the opposite side into two parts.
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Texas Instruments, Inc.
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ResourceSpotlight
This activity is intended to provide students with an opportunity to discover three methods of proving triangles congruent: SSS, SAS, and ASA. Students will not formally prove these theorems; rather, they will use the dynamic feature of the Graphs & Geometry application to gather evidence that these theorems are in fact true.
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Texas Instruments, Inc.
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ResourceSpotlight
In this activity, students will explore the perpendicular bisectors of the sides of a triangle. Students will discover that the perpendicular bisectors are concurrent. The point of concurrency is the circumcenter. Students should discover the relationship between the type of triangle and the location of the point of concurrency.
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Texas Instruments, Inc.
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ResourceSpotlight
In this activity, students will explore proofs of the Pythagorean Theorem. Students will explore the proof of the Pythagorean Theorem using area of squares, area of triangles and trapezoids, and by dissection. Students will then be asked to apply what they have learned about the Pythagorean Theorem.
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Texas Instruments, Inc.
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A discussion of the meaning of the phrase, and how to find math definitions.
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Ask Dr. Math
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A helpful scientific calculator that runs in your web browser window.
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Holt Online Learning
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Discussion of the way angles are measured in degrees, minutes, seconds.
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Math Open Reference
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A discussion of the words' origins, and the difference between them.
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Ask Dr. Math
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