Transcript Document
15 minutes
1.
2.
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
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
Arc length =
circumference
central angle
360
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
Measure of angle B = ½ measure of arc AC
Does this object have arcs?
Worksheet inscribed angles, central,
and arcs
My goal for Wednesday’s test
is…..
15
minutes
Do Now
A tangent line and radius create a _____ angle
Agenda
Review circles!
Unit 6 Probability in book, write down terms
and definitions
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!
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
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
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
Probability
Event
Chance
Likelihood
outcome
If Anne were to flip a coin 100
times could the outcome be 80
heads, and 20 tails? Explain your
reasoning
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)
Vocabulary
Use of frayer models
Create a spinner
Experiment and collect data on a
chance event
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:
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
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
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
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
Make a tree diagram or list
How many possible outcomes are there?
8
How many ways can the coin land heads up
twice?
3
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
Why is probability a fraction?