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Honors Geometry 5/6 Sept 2012 1) Summarize your notes from yesterday on the bottom of your Cornell notes. 2) Place binder and text on your desk. 3) Warm-up: Use same sheet as yesterday. Keep in left side of folder for the week. back Wed/Th Sketch the figure on your paper. Name all line segments, lines and rays. Fri A C B D E Objective Students will be able to be able to identify, sketch and label, midpoint, lines and angles. Students will take notes and work collaboratively. Due TODAY- ART PROJECT Place it on top of your group folder. Tutoring Monday 3 – 3:45 Thursday 1:30 – 2:15 HOMEWORK DUE Friday: pg. 33 +: 18- 32 evens (use graph paper, use KWHCC– write basic info) pg. 37: 1 – 6 all If you have 3rd edition- find assignment from online textbook. See me if you have questions. HOMEWORK NORMS Homework is due at the beginning of class LATE homework will be accepted for no more than 70% credit. You must come in during a scheduled tutoring session and explain the homework, within ONE WEEK of the original due date. Homework will be graded based on completion. NORM-- write basic info/ show work If you don’t know what to do, WRITE down the basic info and what you are trying to find WRITE what you tried to do to solve and WRITE a question about your “point of confusion” If you follow these steps, showing me you made a good effort to complete your homework, you will get full points. Use complete heading on ALL work submitted for this class. Work with an incomplete heading will be considered LATE! (i.e. LATE POLICY will apply!) KWHCC– handout - problem solving strategy KEEP IN front of NOTEBOOK Geometry Symbols– reference sheet (yellow) what jobs require you to learn naming/ labeling? Take notes……finding midpoint Watch video: http://www.khanacademy.org/math/algebra/linearequations-and-inequalitie/v/midpoint-formula FORMULA for midpoint: If the coordinates of A and B are ( x1, y1) and ( x2, y2) respectively, then the midpoint, M, of AB is given by the following formula (Midpoint Formula). practice 1) Write the midpoint formula on top of your paper. 2) Plot the points on graph paper. 3) Find the midpoint graphically and then algebraically, showing your set up for each. (1) ( 1, 2) and (3, 6) (2) ( -2, -3) and (4, 5) (3) (-3, 2) and (3, -2) (4) ( -3, -5) and (0, 4) Be ready to present your work to the class. THINK--complete the section 1.2 anticipation guide Pair: Chat with your group. Do you agree? Now turn to pages 38 – 39 and see if you need to revise your answers. Share: WHOLE CLASS DISCUSSION Angle Vocabulary- summarize in your vocabulary section • An angle consists of two different rays that have the same initial point. The rays are the sides of the angle. The initial point is the vertex of the angle. • The angle that has sides AB and AC is denoted by BAC, CAB, A. Point A is the vertex vertex of the angle. C sides B A Ex.1: Naming Angles • Name the angles in the figure: SOLUTION: There are three different angles. • PQS or SQP You should not name any of • SQR or RQS these angles as Q because • PQR or RQP all three angles have Q as their P S Q R vertex. The name Q would not distinguish one angle from the others. Note: • The measure of A is denoted by mA. The measure of an angle can be approximated using a protractor, using units called degrees(°). For instance, BAC has a measure of 50°, which can be written as mBAC = 50°. B A C more . . . Angles that have the same measure are called congruent angles. For instance, BAC and DEF each have a angle congruency mark, so they are congruent. D D see pg. 40. E B E F F BAC DEF A C orA E Note – Geometry doesn’t use equal signs like Algebra MEASURES ARE EQUAL ANGLES ARE CONGRUENT mBAC = mDEF BAC DEF “is equal to” “is congruent to” Note that there is an m in front when you say equal to “the measure of the angle…… equals…..” The congruency symbol says “same shape (angle)” “same size”. “Angle BAC is congruent to…..” practice– in your notes…. Name each angle in as many different ways as you can: A A B D B C C E practice Work with your group to complete TWO handouts1) Measuring Angles 2) Lesson 1.2 Poolroom Math Be prepared to share your work with the class. Once your group is FINISHED, I will ask each group to prepare a POSTER showing the solution to one of the problems. debrief what did you learn today? what did you find interesting? what do you still have questions about?
