Welcome Geometry! TearOutPages:Ø  Pg.59 (Putaway,thisishomework)

Welcome Geometry! U1H9: Pg. 59 #1-2, 4-5, 7, 15-17, 22

****You will need a calculator for this Hw**** Updates: U1Q3 will be Sept. 19th

Agenda ① Warm-Up! ② Review U1H10 ③ Finish U1A4 ④ U1A5 ⑤ Around the World ⑥ Cool-Down

Warm-Up!

Review U1H10

U1A4–SegmentandAngleMeasurementWewillcomplete#5atogetherthenyouwilldo#5b-d.

U1A4–SegmentandAngleMeasurement

SettingupyourNotebookWearestartingActivity5today.**StapleinU1A4SB**IwillleaveonepageblankformySBnotes.Pleasetearoutpages51-58.Today’sLesson#:U1A5Topic:DistanceandMidpointFormulaLO#9:Deriveandusethedistanceandmidpointformulabetweentwopoints.

U1A5–DistanceandMidpointFormulaPg.51

U1A5–DistanceandMidpointFormulaPg.51

U1A5–DistanceandMidpointFormulaPg.51

U1A5–DistanceandMidpointFormulaPg.51

U1A5–DistanceandMidpointFormulaPg.51

U1A5–DistanceandMidpointFormulaPg.53

U1A5–DistanceandMidpointFormulaPg.53

Distance Formula o  The distance, d, between two points (x1, y1) and (x2, y2)

is:

When using the distance formula life can get tricky

because now we have square roots!

As a class lets simplify

U1A5–DistanceandMidpointFormula

Whiteboards! On a calculator `ind the square root button. Do Use the distance formula to `ind the distance between L(-2, 4) and K(-3, -1).

U1A5–DistanceandMidpointFormulaPg.54 Complete#16inyourgroups.

U1A5–DistanceandMidpointFormulaPg.56

U1A5–DistanceandMidpointFormulaPg.56

U1A5–DistanceandMidpointFormulaPg.56

Midpoint Formula o  Average of the x- coordinates and average of the y-

coordinates

M =

U1A5–DistanceandMidpointFormula

U1A5–DistanceandMidpointFormulaPg.57 Attempt#4inyourgroups.

StapleU1A5SBnotesintoyourblankpage.

AroundtheWorldOpen up your classwork notebook to the next page and title the left hand side Around the World.

AroundtheWorldI have posted around the room 6 questions on pink paper. You will go the question closest to your desks and copy down the problem into your notebook. Then you will answer the question. Once you get a solution you will go look around at the other pink papers and at the bottom of one of the papers should be your solution. That is the next problem you will attempt. If you are successful, you should go to each question and end up at the question you started at.

AroundtheWorldYou may work with others, but if you are standing instead of talking you will owe me time after class.

This is practice time NOT talk time.

This is your chance to ask me or others speci`ic questions on what you did wrong such that you can do well on your quiz Friday J

Cool-Down

REDWhatisthedifferencebetweencongruenceandequal?BlueWhatdoesitmeantobisectaQigure?GreenWhatisabsolutevalue?YellowStatetheAngleAdditionPostulateinyourownwords.