Lessons and Tools for Teachers

#### Lessons for Triangles

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• Geometry 3 - … : * The Sum of the Angle Measures of a Triangle * Congruent Triangles * Isosceles Triangles and Equilateral Triangles * Right Triangles and the Pythagorean Theorem * Parallel Lines and … GEOMETRY Isosceles Triangles and Equilateral Triangles There are several special types of triangles. An Isosceles triangle is one such type. An isosceles triangle has at … Triangles An Equilateral triangle is another special type of triangle. An equilateral triangle has three sides of equal length. In Figure 12, each triangle is …
User Rating: Grade Level: 9-12
• The Fun Polygon - … ) -Textbook -Tricky Triangles and True Triangles (See Attached File.) -Traveling Triangles (See Attached File.) -Crayons and/or colored pencils -Equilateral Triangles manipulatives (See Attached … for Triangles 3-7. (Triangle 1: three lines; Triangle 2: none; Triangle 3: none; Triangle 4: one line; Triangle 5: one line; Triangle 6: one line; and Triangle … each triangle by combining its angle and side classifications. For example, Triangle 1 is an acute equilateral triangle, Triangle 2 is a right scalene triangle
User Rating: Grade Level: 3-5
• Similarity and Congruence - … . Compare this triangle to triangle ABC. [the two are similar]. Use the definition of similar triangles to justify that the triangles are similar. Lead … of the sides of each triangle (side-side-side triangle congruence). The two triangles are similar by angle-angle triangle similarity. 1.2 1 … segment DE. Is triangle ABC congruent to triangle DBE? Use mathematics to justify your answer. 5. Is triangle ABC similar to triangle DBE? Use …
User Rating: Grade Level: 9-12
• Points of Concurrency Related to Archaeology - … right triangle two of the altitudes are the legs of the triangle with the third altitude inside the triangle. In an acute triangle all three altitudes lie inside the triangle. In an obtuse triangle one altitude is inside and two are outside the triangle Scoring …
User Rating: Grade Level: 9-12
• Congruent Triangles - … it, is to create Triangle DET, a triangle congruent to Triangle SPY, on your cardstock. To gain information about the triangle: You must fold … it, is to create Triangle DET, a triangle congruent to Triangle SPY, on your cardstock. To gain information about the triangle: You must fold … it, is to create Triangle DET, a triangle congruent to Triangle SPY, on your cardstock. To gain information about the triangle: You must fold …
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• Triing Triangles - … to: â¢ Classify triangles by their sides â¢ Classify triangles by their angles. â¢ Identify the differences in similar and congruent triangles â¢ Identify triangles in real world … triangles and similar triangles. RESUME video. PAUSE video on the graphic of two similar triangles to solicit information. Ask students to define congruent triangles (triangles that have exactly the same measurement on all three sides) and similar triangles (triangles
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• "Tan": Formerly know as - … your larger Isosceles triangle have? (answers) How many sides does your smaller Isosceles triangle have? (answers) Say: An Isosceles triangle has two equal … various types of triangles. http://quizlet.com/5006905/classifying-triangles-and-quadrilaterals-flash-cards/ Remediation: Technology: Online identification of triangles and quadrilaterals. Remediation … various types of triangles.http://quizlet.com/5006905/classifying-triangles-and-quadrilaterals-flash-cards/http://quizlet.com/5006905/classifying-triangles-and-quadrilaterals-flash …
User Rating: Grade Level: K-2
• Proofs into Practice: The Pythagorean Theorem in the Real World - … sides of a right triangle, using the Pythagorean Theorem. Students will determine whether a triangle is a right triangle, using the Pythagorean Theorem … sides of a right triangle, using the Pythagorean Theorem. Students will determine whether a triangle is a right triangle, using the Pythagorean Theorem … sides of a right triangle, using the Pythagorean Theorem. Students will determine whether a triangle is a right triangle, using the Pythagorean Theorem …
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• A Triangle to Remember - … Triangle to Remember Title: Title: A Triangle to Remember A Triangle to RememberOverview/Annotation: This lesson will introduce students to different types of triangles … be used to assess students comprehension of classifying triangles. Student responses during the Triangle Baseball game, graph paper drawings, and interactive posters … be used to assess students comprehension of classifying triangles. Student responses during the Triangle Baseball game, graph paper drawings, and interactive posters …
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• Geometric Mean and Indirect Measurement - … measuring device) draw the altitude of the right triangle. This creates two smaller triangles. 4. Students should then assign a number (4 … measuring device) draw the altitude of the right triangle. This creates two smaller triangles. 4. Students should then assign a number (4 … measuring device) draw the altitude of the right triangle. This creates two smaller triangles. 4. Students should then assign a number (4 …
User Rating: Grade Level: 9-12
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