Transcript Document

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15 minutes
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What is a rotation of an object? How
do you go about rotating an object?
What happens when you rotate the
object below 90 degrees? Draw a
picture
12-10-12
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Test tomorrow 12/12
Circles: equation of a circle, identify
radius, center, graph, create a tangent,
solve a triangle in a circle with
Pythagorean Theorem
Identify arcs
Solve for arcs
Working with inscribed and cental
angles
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Arc length =
circumference
central angle
360
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how many times will the inscribed angle fit in
the central angle?
2 times
Remember the measure of an arc is equal to the
measure of the central angle that intercepts it.
Therefore, the measure of an inscribed angle is
_______________ the measure of the
intercepted arc
½
Inscribed angle theorem
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Measure of angle B = ½ measure of arc AC
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Does this object have arcs?
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Worksheet inscribed angles, central,
and arcs
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My goal for Wednesday’s test
is…..
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minutes
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Do Now
A tangent line and radius create a _____ angle
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Agenda
Review circles!
 Unit 6 Probability in book, write down terms
and definitions
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Pg. 821 #7
Pg. 821 #13
Pg. 821 #14
Pg. 822 #22, 23, 24
Pg. 826 #13 a, b, c, d
Pg. 846 #34
We will check before you leave!
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View videos on sports, weather
How is probability used in the real-world?
Probability of an event is represented as a
fraction or decimal from 0 to 1 or percent 0% to
100%
0 probability is impossible
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You will turn this in:
Define each of the words, using your own
words ( in terms of math)
Probability
Event
likelihood
outcome
Create a list of events and order them on a
continuum from impossible to certainty
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I learned today
 10
minutes (3rd block only)
 2nd block review 5 minutes
and take test
 Do
Now:
 Create a venn diagram
describing the similarities and
differences between
circumference and diameter
Probability
What do you know?
 The Monty Hall Problem – you
tube
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Probability
 Event
 Chance
 Likelihood
 outcome
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If Anne were to flip a coin 100
times could the outcome be 80
heads, and 20 tails? Explain your
reasoning
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http://interactivemaths.wikispaces.com
/Chance
http://mathgoodies.com/lessons/vol16
/intro_probability.html
Students please write down vocabulary,
look for something to track that deals
with probability (such as basketball free
throws, quarterback passes, soccer
penalty kicks, study and passing test)
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Vocabulary
Use of frayer models
Create a spinner
Experiment and collect data on a
chance event
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Why is probability of 0
impossible? Why do we want 1?
15 minutes D.E.A.R.
 OR
 15 minutes surf and search for
Geometry reviews
 Start first with these sites:
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Relative frequency – How often something
happens divided by all outcomes. Example: if
your team has won 9 games from a total of 12
games played:
Geometric probability – points on a segment or
in a region of a plane represent outcomes. The
geometric probability of an event is a ratio that
involves geometric measures such as lengths of
segments or areas of regions
P (event) = # favorable outcomes/ # possible
outcomes
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Point S on segment AD is chosen at random.
The probability that S is on segment BC is the
ratio of the length of BC to the length of AD
Pg. 707 #1
Pg. 707 #2
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Point S in region R is chosen at random.
The probability that S is in region N is
the ratio of the area of region N to the
area of region R
P (S in region N) = area of region N
/area of region R
Pg. 708 #3
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Pg. 709 #1, 2, 3, 4
Pg. 709 #5, 6
Finish stain glass design or word design
What are possible outcomes for
one toss?
 Heads or tails
 Create a simple sample space
with coin tosses, possibilities
using 2 coins
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Make a tree diagram or list
How many possible outcomes are there?
8
How many ways can the coin land heads up
twice?
3
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You have 3 pairs of pants: blue,
black and white. You have 4 shirts:
red, green, white, and orange. Two
pairs of shoes: tennis shoes or
sandals.
Make a tree diagram and find the
probability you choose a pair of blue
pants and an orange shirt
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Why is probability a fraction?