Overall so far during this class it has been a challange. Start of the tri was not as difficult until it got to the teat then it seemed like I had no idea what I was doing. Every week I try my beat and put 100'/, in what I do. This week I feel I'm gonna be more focused and go step by step. This course has been a bumpy ride from basic review to finding vertex form and completing the square. I feel in order to get to that next step is to ask more questions and ask my group
Monday, October 7, 2013
Sunday, October 6, 2013
BOB 3
Overall this week went by pretty easily. However there were a few bumps in the road, in general i almost never have to come in after school to get help but this week was an exception. When Mr. Jackson was explaining the process of completing the square I made a common mistake of mine, zoning out -_- and from there on out nothing clicked. So i decided to break my streak of independence and ask for help after school, which to my surprise wasn't that bad. It literally took minuets of hearing it again and I had it down for good.
Bob 3
This week had given me more hope in toward the class because at first when I got my test grade back I was thinking it was going to be a bad tri but when we did the extra credit and brought my grade from a b- to an A- which gave me a lot of hope for this tri so I think it is going to be a good trip if I keep up the good work
B.O.B. #3
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B.O.B. - Vance W.
B.O.B Progress
B.O.B.-Reflection on this week
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muddiest point
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My thoughts about stuff that happened this week
Reflection
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Reflection From Friday the 4th #B.O.B
When he handed my group..more like my table buddy and I's quiz. I actually looked at it and thought wow, 4 questions about completing the square and factoring (2 in each catageory) do not seem to be all that bad. Not to shabby at all. When i started to solve the problems of completing the square i felt confident because before the quiz my class was going over questions, and i was answering what steps to take while solving a problem like this. Mr. Jackson said "you guys should be over here in Breannas group because she knows what shes doing." That made my day. Firstly, because i know im definetly not the brightest crayon in the box. Secondly, I actually love solving these kinda problems, gets my brain juices flowing. (lol)
After i solved the completing the square problems, i then had to do factoring. Oh how factoring and i have a love hate relationship. It always takes me a few minutes to find what pairs mulitply to be the "c" values and what they add to be the "b" values. By the time i started to work on finding the pairs, time was out. Thanks factoring its all your fault! Just kidding, its really mine. So Jackson collects our quizzes and im sitting there feeling down, because i didnt finish, and someone asks a question about factoring. Mr. Jackson demonstrates it, and in some weird way, some lightbulb from no one knows who, clicks in my head. I now get this completey and i see how fast Mr. jackson finds the pairs for the equation, the pro he is, and im thinking yup. Please let me finish my quiz i got this! So i get my quiz back and i complete those factoring problems. Am i 100% positive i did the correct? No, but im 90% sure i did them some justice.
On friday, October 4th 2013, i felt good walking out of Mr. Jacksons Precalc Functions class. :)
BOB
B.O.B. Reflection
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-Hannah-R
B.O.B. Week 3
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Haley
Bob#3
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B.O.B-Thursday in class
I didn't figure out that we were deriving the quadratic equation until I was almost done. That made me slightly frustrated with myself because I did that last year and I figured it should have been familiar/easy...and it was neither if those. I also had issues with x and y intercepts, but I finally got that straight, so that's good. I just have to be more careful when I complete the square to change an equation to vertex form as opposed to solving when that equation is set equal to zero. I have to remember to either factor out the a value or remember to devide f(x) or y or whatever that variable is by the a value so I don't get rid of it completely and mess myself up. But besides that, I'd say I'm on pace with this unit so far.
-Kristin R
B.O.B Reflection
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B.O.B. - By Mr. Jackson
| Domain of radical functions? |
So, lets join together and finish this journey that has brought us half way through trimester 1. We have 6 more amazing weeks left. What do you say to a strong finish with some beautiful mathematics? Are you with me?
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B.O.B.- something cool
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B.O.B.- something I didn't understand for a long time
I always had problems to find the interceptions, sometimes I could find them but normally it was just coincidence. Now I understand it, because a classmate explained me, how I can find them and what they are. He told me that when you graph a function, the x-interceptions are the 2 points, where the graph crosses the x-axis and the y-value is zero. You find the x-interceptions, when you you write them in the fallowing term: (.....)(....)
When you got so far, you have to take the opposite of what is done with the number in the brackets (change sign!).
For example: (x-3)(x+4), Then the x-interceptions would be 3 for x and zero for y; and -4 for x and zero for y. Also often written as: (3,0) (-4,0)
To find the y-interception is easier, because there is always just one, because the graph crosses the y-axis only once. To find the y-interception you don't have to write it in this (....)(....) -form, or when it is already in this form, you have to distribute it to find the y-interception.
For example: x^2-3x+5, here the y-interception is five, because here the sign doesn't change.
Instructions to find x-intercepts:
1) put the equation in the fallowing form: (....)(....)
2) change the signs of the numbers in the brackets and you get 2 numbers, those are your x-interceps with y=0
Instructions to find the y-intercept:
1) put the equation in the fallowing form: x^2+3x-2 (just an example)
2) the y-interception is -2, always the number without an x and here: don't change the sign!