1. Honors Geometry 23 Sept 2011 Take papers from your folder and put them in the correct section in your binder. Note- remove everything from both sides EXCEPT keep your warm up paper in the left pocket through the week Check your homework Warm-up- silently please Begin working on Handout- “Why couldn’t two elephants…” --- finding angle measures SHOW WORK/briefly explain for each angle– see #1

2. Objective Students will find measures of angles formed by a transversal cutting parallel lines. Students will use the conjectures to find angle measures. Re-BUBBLING…..

3. Homework due TODAY Vocab review game, 3 algebra problems P1- art project revisions Homework due next class Complete Handout- “Why couldn’t two elephants…” UPCOMING due dates revised--Vocabulary Quiz-- Sept 26 study sections 1.3, 2.5, 2.6

4. 3 conjectures: 1.Linear pairs add up to 180 0 2.Vertical angles are congruent 3. If two parallel lines are cut by a transversal, then corresponding angles (CA)are CONGRUENT, alternate interior angles (AIA)are CONGRUENT and alternate exterior angles (AEA)are CONGRUENT. NOTE- this is true ONLY when transversal cuts PARALLEL lines!!

5. converse of If 2 lines are cut by a transversal parallel lines to form congruent pairs of conjecture CA, AIA and AEA, then the lines are parallel

6. Work on handout show steps– see # 1– and briefly explain why! debrief: Who can restate the parallel lines conjecture? The converse?