Math 105 daily log

What do you need to do for Wednesday 9/8?

  • Section 6.1: study ALL of it. Some material has been covered in class. Please read the rest of the section, read the examples, do the margin exercises and then the ones from the back of the section. Bring all your questions to my office hours on Tuesday and Wednesday and also to class
  • Print the handouts from my website. I already gave you some of them. Look in my website.
  • Some of the handouts are due: see below – Bring questions to my office and to the class
  • Watch some of the Math 105 videos from Professor Bill Witte’s website (link in my website)
  • There will be a quiz on the material that has been covered in class.

Would you like to extend all classes by 15 minutes? It will really help to go to a more relaxed pace. Think about it and let me know next class

THIS IS WHAT MY WEBSITE LOOKS LIKE –

GO TO MY WEBSITE AND PRINTthe indicated documents

6.1 - DMS-Decimal
Given out in class
Due on 9/8 / Trig Functions from Triangles
this one was your quiz / Values reciprocal function
Given out in class
Due on 9/8 / Signs of trig functions
Print - Due on 9/8
More on signs
Print / Possible values
Print
6.4 - Degrees - Radian
Print

Wednesday September 8, 2010

  • We had a quiz
  • We finished section 6.1
  • We did 6.2
  • We forgot to go over the HOUT about values of reciprocal function - Bring it to next class to turn it in
  • Do HWK from both sections and bring them to my office or go to the MSC.

Complete the HOUT Signs of trig functions

To answer each problem on this HOUT you are required to do the following: for each problem, sketch the circle centered at (0,0). Label the point P(x,y) in the given quadrant. Project this point to the x-axis and label the sides of the triangles with x, y, and r (radius of the circle). Place the signs (+) or (-) in each of the sides of the triangle. Then, show the quotient and the resulting sign. I did 2 in class, please, do the same. This is a training for whatis coming, so....please....do as I ask you to do. If you don’t understand what Iwant, come to see meby Friday this week

  • Next class: quiz on anything that we have covered.
  • Part of the quiz will be without a calculator. Memorize the EXACT values of the special angles 0, 30, 45, 60, and 90 degrees
  • We’ll be extending each class by 10 or 15 minutes. Remember, this is for yourbenefit. They pay me exactly the same whether I do this or not
  • There is a new HOUT to print – Name the arc
  • I have posted some power point presentations in MYMC – go to MYMC, get into your trig course and click on FILES (left column). You will see the link to the power point document (on the right). Look through the first 9 pages
  • Have fun with math!

Monday September 13, 2010

  • We covered 6.3
  • Review the power point presentation from MYMC (the first 9 pages)
  • In the PowerPointPresentation from my website (on 6.3 – below), you will understand some material, not all of it yet. This PP is from the precalculus book, so 6.3 in that book is not exactly as 6.3 in our book.
  • We had a group quiz at the end of the class – trig functions of special angles
  • We worked with “special” angles which are the ones that have as reference angles 30, 45, or 60 degrees.
  • Explore how you will work with “any angle in any quadrant
  • Study for a quiz (1 word problem + today’s material)

Some Handouts - Print - Do not complete them in advance UNLESS it is indicated!

6.1 - DMS-Decimal
Given out in class
Due on 9/8 / Trig Functions from Triangles
This one was your quiz / Values reciprocal function
Given out in class
Due on 9/8 / Signs of trig functions
Print - Due on 9/8
More on signs
Print / Possible values
Print
6.4 - Degrees - Radian
Print / Name the arc
Print

Power Point Presentations

Section 6.3 - PPT
Read / Section 7.1 - PPT
Read / Section 7.8 - PPT
Read

Monday September 20, 2010

  • We started section 6.4. in this section we do not cover the topics of arc length and angular speed

We only cover up to arc length on the top of page 398

  • Study how to transform from degrees to radians

How to transform from radians to degrees

How to find trig functions of angles given in radians

  • On the given HOUT solve as many problems as possible.
  • Did you figure out an easy way of figuring out the values of the trig functions of quadrantal angles?

Ask me next time. Today I forgot to talk about it.

  • Quiz at 3 pm will be WITHOUT A CALCULATOR (study 6.3)
  • MEMORIZE the trig functions of the reference angles
  • You will be showing procedures to find the trig functions of angles from different quadrants (angles will be given in degrees)
  • Also, in this quiz, there will be a part with calculator: solving right triangles from section 6.2
  • Monday MIDTERM on sections 6.1-6.5

Monday September 27

  • We had the midterm
  • There is an assignment due next class – I e-mailed it to you
  • In MYMC I have uploaded many files for you to review the concepts learned so far. We have to cover identities and equations.
  • Our final exam will be October 18

Wednesday September 29

  • We discussed the graphs of the functions y = sinx and y = cosx
  • We started section 7.s
  • Do the HWK from the section and also the identities that I e-mailed you
  • Memorize all the identities given in class
  • EXAMPLE QUIZ SHOWN BELOW

1) Give the reciprocal identities

2) Give the quotient identities

3) Give the Pythagorean identities

Then, there will be some other types of problems:

4) Simplify the expression sinx * cscx

5) How would you write (sinx)^2 in terms of cosx?

6) Write the expression sinx + (cosx)^2 in terms of sinx only

7) Similar to the HWK in book

8) Easy factoring problems as in the book

9) Easy identities to show that the left hand side and the right hand side are equal (I e-mailed you a document on this)

FRIDAY 10/1 – MATH CLUB TUTORING SESSION – 4:30 TO 6 PM – TUTORS WILL BE AVAILABLE IN SE229 TO help you out with any questions in your HWK. Come to study with us.

Monday October 4

  • We finished with 7.1
  • At 2 pm on Wednesday we’ll have a 10 minute quiz on 7.1

Wednesday October 6

  • Quiz on section 7.1
  • Section 7.8 – do the assigned HWK for the day
  • Next class we have a quiz on this section
  • Print the HOUT about TRIG EQUATIONS (my website) and solve by Monday
  • Our FINAL EXAM is on 10/18. It’s about ALL material covered in class (see syllabus for the list of the sections)
  • DUE THE DAY OF THE FINAL EXAM: Organized binder containing

-ALL HOUTS that are in my website. You have already solved most of them. The new ones that I have posted are the ones that I e-mailed you before. There is only one new handout which is about 7.8 Trig Equations. Re-do all messy papers.

-ALL QUIZZES – re-do the wrong problems

-The graphs of y = sinx and y = cosx. (The students who did not do this, have to do it now). If you did it and it is wrong, re-do it (I have not returned the ones you gave me yet)

-One of the handouts that I had e-mailed you has 51 questions and we did just a few in class; solve at least 20 questions. It will help you to review for the final exam