Angles Day One and Two Objective: You will be able to understand and use vocabulary about angles and triangles in your partner groups You will measure angles first with a partner to determine accuracy and then on your own. Warm-up: What do you remember about angles and triangles? Day One: CW and HW: Vocabulary Cards Day Two CW: Measuring angles and Vocabulary HW: Complete WKSH and Vocabulary

Vocabulary Create Flash Cards: Word, Definition, and Drawing Ray - A part of a line. It has exactly one endpoint Angle - A figure formed by two rays with a common endpoint Vertex - Corner or intersection of geometric points Side - One of the rays forming the exterior of an angle or polygon Right Angle - An angle that measures 90 degrees Acute Angle - An angle that measures less than 90 degrees Obtuse Angle - An angle that measures more than 90 degrees but less than 180 degrees Straight Angle - An angle that measures 180 degrees Complementary Angles - Two angles whose sum is 90 degrees Supplementary Angles - Two angles whose sum is 180 degrees Congruent Angles - Angles that have the same measure Adjacent Angles - Angles that share a vertex and a side but no points in their interiors Vertical Angles - Angles formed by two intersecting lines and are opposite each other. Vertical angles are congruent. Triangle - A three sided polygon Equilateral Triangle - A triangle with three congruent sides Isosceles Triangle - A triangle with two congruent sides Scalene Triangle - A triangle with no congruent sides Right Triangle - A triangle containing a right angle Acute Triangle - A triangle with all angles measuring less than 90 degrees Obtuse Triangle - A triangle containing one obtuse angle

Special Angles Day Three Objective: You will be able to classify and find the measurement of angles using properties of special angles with a partner. Focus of Vocabulary: Vertical Angles - Angles formed by two intersecting lines and are opposite each other. Vertical angles are congruent Adjacent Angles - Angles that share a vertex and a side but no points in their interiors Complementary Angles - Two angles whose sum is 90 degrees Supplementary Angles - Two angles whose sum is 180 degrees Warm-up: Complete 2 CASE21 problems and The following angles are complimentary, what is the value of y? y 32 CW: Special Angles – notes HW: Workbook 7-2, p. or WKSH Special Angles

Triangles Day Four, Five and Six Objective: You will determine if given angles and sides can make a triangle classify a triangle find missing angle measures in a triangle Focus on Vocabulary: Equilateral Triangle - A triangle with three congruent sides Isosceles Triangle - A triangle with two congruent sides Scalene Triangle - A triangle with no congruent sides Right Triangle - A triangle containing one right angle Acute Triangle - A triangle with all angles measuring less than 90 degrees Obtuse Triangle - A triangle containing one obtuse angle Warm-up: Complete 2 CASE21 problems. Watch video: http://www.beaconlearningcenter.com/WebLessons/TrianglesSideBySide/geotri001.htm With your partner complete What do we know about the sum of the measures of the angles of any triangle? How many different triangles with a given set of angle measures can be drawn? What do you call two triangles which have the same angle measures but different side lengths? What do you know about the side lengths of similar triangles? Class discussion WKSH Triangle Side Investigation. HW: Workbook p. 62 all

Triangles Objective Day Five: You will determine if given angles and sides can make a triangle classify a triangle find missing angle measures in a triangle Warm-up: 2 CASE21 questions and review yesterdays concepts. CW: Triangle Angles Investigation WKSH HW: Complete Triangle Angles Investigation WKSH Objective Day Six: You will determine if given angles and sides can make a triangle classify a triangle find missing angle measures in a triangle Warm-up: 2 CASE21 questions and review yesterdays concepts. CW: Summary of two days concepts on Triangles WKSH – Triangles for a class work grade.