Math 120:
Pre-calculus 2
Instructor: Mike Panitz
(mpanitz@cascadia.ctc.edu)
Today
• Reference Angles
– Chapter 6.4 (4e)
| Chapter 8.4 (3e)
• Unit Circle Approach: Trig Function Properties
– Chapter 6.5 (4e)
| Chapter 8.5 (3e)
• Graphs of Sine & Cosine Functions
– Chapter 6.6 (4e)
| Chapter 8.6 (3e)
Math 120: Pre-Calculus 2!
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Next Lecture
• Finish today’s material
• Graphs of the Remaining Trig Functions
– Chapter 6.7 (4e)
| Chapter 8.7 (3e)
• Trig. Modeling
– Chapter 6.8 (4e)
| Chapter 8.8 (3e)
Math 120: Pre-Calculus 2!
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HomeWork
• HW is provided to:
– Make sure you get practice in
thoroughly, completely, correctly
working out answers to problems
– Provide guidance (by example) of
what sorts of questions will be on the
exam, etc
– Provide the instructor some feedback
on how people are doing
Math 120: Pre-Calculus 2!
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HomeWork
• SHOW ALL WORK
– If you use a formula, write it down
– If you use a formula, define what
each variable in the formula means
– Plug the variables in
– Do 1 math operation per line
Math 120: Pre-Calculus 2!
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HomeWork
• Ex: An angle is 3 radians, the circle
is 1 foot long, what’s the arc length?
– 1) s = r • θ
– 2) r = 1 foot
θ=3
– 3) s = 1 * 3
s = 3 (feet)
Math 120: Pre-Calculus 2!
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HomeWork
• At the same time: there’s ~30
students, and ~10 problems/HW (or
more)
– 300 problems per HW assignment
– This is too much to grade them all in
fine-grained detail
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HomeWork
• HW will be graded as follows:
– Quick pass through for overall completion
/ “stuff looks right”
• Anything that isn’t finished / correct may
result in loss of points
– A couple of questions will be picked for
more detailed review
• Questions picked are at instructor’s discretion
• May not be the same for all students
Math 120: Pre-Calculus 2!
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Exams
• Exams, unlike the HW, WILL be
graded in detail
– Partial credit will be awarded
– Exam grading will be based on your
ability to show your work
– You’ll do some ‘practice mini-exams’
before the exam
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Exam #1
• You’ll be given some problems to work
through, and for each problem, you’ll also
get the answer.
– Your grade will be dependent on your ability to
fully document & explain how you get to the
answer
– Partial credit for ‘correct steps, wrong answer’
• You’ll be allowed to bring notes on a 3”x5”
card (front and back).
– No other notes/books
– Calculator memory will be cleared before you’re
allowed to start
Math 120: Pre-Calculus 2!
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Donate School Supplies!
• Mississippi Gulf Coast Community College had been
devastated by hurricane Katrina, Please join Cascadia
Student Government’s efforts to aid our fellow community
college students in there time of need! We are collecting
school supplies to send to Mississippi for students that
have had all of there school supplies destroyed by Katrinathe book store has even volunteered to ship the supplies we
collect!
• We are collecting new and used school supplies•
EVERY LITTLE BIT HELPS!
• Please bring school supplies to:
• CCC Student Government Office, the lower level Peer
Resource Desk, or the Library Annex
Math 120: Pre-Calculus 2!
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