Review Class

Today he was explaining a equation about the sine ratios. I hope I understand it by the end, and I will update my blog on this later (I hope I remember to).. I really had no idea what he was talking about so I am going to stay for tutoring and figure it out. I hope I understand it by the end, and I will update my blog on this later (I hope I remember to). Ok update time, I looked in my green book and found a lesson on how to graph next to the unit circle chart. I went over this and learned how to graph. I sadly drew a blank on this when it came to the test. note to self: go over it a bit more next time.

friday september 25, 09

Today I was having problems stating the domain and range from yesterday. I looked over it and researched through the green book to learn that the "K" value is needed to bring it full circle back to the same point to keep the function going.

Today we did mental math, I didn't do all that well but after we corrected it I knew how to do them all. I feel confidant I will do much better next time. I also feel good about the test.

Past Exam Questions

Today we were to answer an old exam question and post how we did it on the whole class blog. I picked a question that is the same style as the ones that have been giving me trouble recently. I worked my way through it and got the right answer in the end. I did ask Stephen again to make sure I was on the right track midway through my question. I also learned some useless html text today. For example if you want to make a degree(°) symbol all you have to type is "& deg" (without the space). I was very happy with how I did my question. There is very little I don't understand anymore.

Working on Acclerated math

In class we went through a few of Jill's accelerated math questions. Then I went on to do some of my own, there was one question that was giving me sin = 3/4 and knowing that is also x/1 I was having problems with it. So i asked Stephen and he told me to use my original ratios so I knew that the 4 was actually the hypotenuse which is 1, after that I found it all fairly easy. Thank you Steve-O!

Trig Law Chart

For this class we were told to make a chart with all the trig functions on it. At the start I had no idea how I was to do this, but as the class went on I realized that as the points go around the circle the pattern repeats. For sine up to 90 it goes 0, 1/2, root2/2, root3/2, and then 1. it is the opposite as the cosine ratios. And to find secant and cosecant you would just reverse it.

Creation of the Unit Circle

Today we learned how to create a unit circle. Some important points are:
1) Know the Fractions
2) The 6 Trig Ratios
Sine = y/1 Cosecant = 1/y
Cosine = x/1 Secant = 1/x
Tangent = y/x Cotangent = x/y

Tuesday September 15, 2009

Today we had a sub, it was ridiculously hot in the class so we went down to the cafeteria. I worked on the cumulative exercises because I didn't understand the accelerated math.

Radians

What I learned about Radians
- There are 3.14 of them in 180 degrees of a circle.
- The measured angle of a Radian is 57.4 degrees.
- A radian is the angle of the arc on a circle with a length equal to the radius.

Goals For The Year

This is the start of a new year in Math. My goals for this year are to finish the class with at least an 80% average, finish one test with an 85% mark, and do all of the work I am required.