3rd Period: 12/18/08 December 19, 2008

In class today, we basically reviewed what we did in class yesterday. Mrs. Hawn went over how to multiply matrices with variables in them and how to find the inverse of matrices.

For example, to solve matrices with variables in them, all you so is solve the equation. so if you have a matrix with x+2 on the top and y+7 on the bottom then you would just make an equation with the other numbers on the other matrix. So if you had 12 and 17 in the other matrix, then you woul solve x+2=12 and y+7= 17. So then x and y would =10.

To find the inverse of a matrix you type the matrix in your calcualtor and put it to the -1 power.

After we reviewed the homework about this then we played a review game on inverse of matrices and then she went over some of the questions that would be on the quiz today.

I thought that the quiz was easy. It kind of made it easier that she went over everything that was going to be on the quiz before we took it so that was a huge help.

3rd period 12/3/08 December 5, 2008

today we stated on absolute value  functions.  we also did a group project as class work.  for example 2(x-3)+2  then you find the trans, domain, range, x.y,vertex.

12-2-08: 3rd period December 5, 2008

Today in class we reviewed

3rd period: 11-18-08 November 21, 2008

First we took a quiz finishing up rational functions. Then we  learned how to solve Direct Variation, Inverse variation, Joint Variation and Conmbined Variation

3rd Period: 11/12/08 November 17, 2008

Hi, this is John Joseph from Mrs. Hawn’s 3rd Block class. Today in Algebra 2 we reviewed over Solving Rational Expressions and also had a quiz on Adding/Subtracting Rational Expressions.

3rd period: November 7, 2008 November 10, 2008

Today in class, we continued to do examples of rational expressions in finding the common denominators. When given a problem, there are 5 steps. The first one is to factor the denominator, find the LCM (least common multiple), get a common denominator, add or subtract the problems and then factor, cancel and simplify.

Ex.) (3/4q – 2/5q – 1/2q) The first thing we did was change the sign to a + and the 2 and 1 to a -. Then you factor the denominator. The outcome would be 4*q  5*q  2*q. Then you try to find the LCM. The 4 is used in the first term, the 5 in the second, 2 in the third and the q in all three parts of the equation. So with each part, you have to find what is missing from it and then multiply. So for 3/4q you would multiply it by 5*2 since those parts are included. You would do the same with the rest of the problem. -2/5q is multiplied by 2*4 and -1/2q by 4*5. When you work it out, you get a common denominator of 40q. Then you add the problem up 30/40q + -16/40q + -20/40q. When you add it up you get -6/40q which can be reduced to -3/20q

I thought this problem was kind of challenging, but after a few more examples I started to understand how to do it.

3rd period: 11/6/08 November 10, 2008

Today, on Thursday November 6th in Mrs. Hawns classed we continued our lesson from the last day, besides us adding some new ways and methods.  One thing that was different was unlike denominators and adding and subtracting them.  In doing this we used different colors to represent the different parts of the problem.  This helped to keep them seperate and not confuse them.  There were many steps and notes we took for this that we learned.  The steps for adding and subtracting them are:

1. factor
2. least common multiple (LCM)

One thing that is different in subtracting then adding is that you have to change the signs.
That’s what i learned today.  THis was a great lesson!

3rd period: 10-30-08 November 4, 2008

In class today, We did a warm up on topic 33, the warm up was review. And part of the warm up was what we learn yesterday. Then Mrs. Hawn made the class take notes on Multiplying and Dividing Rational Expressions. To me learning this new method was not that hard. After taking notes the class got alittle noisy but Mrs. Hawn got it under control. Then the class played a game to help understand the method a little more. And now the Obama 08 and the Swaggers are tied.

Breonna

3rd period: 9/19/08 October 13, 2008

We’ve started on a new problem (discriminant). It is D=b^2-4ac. We solve this first by graphing the proplem first. And the problem should come out as a parabola. The problem might be a perfect square a not perfect square, zero, or a neagtive. A perfect sqaure has 2 rational roots, a positive, not perfect square has 2 irrational roots, zero has 1 rational root and a negative has 2 complex roots.

3rd block: 10/03/08 October 7, 2008

On Friday, we went over inequaltites and how to solve and graph them.  Mrs. Hawn put problems up on the board and one by one we worked them out on dry erase boards that she gave us.  Some of the problems we solved by graphing, and others we solved by the calculator method.  She answered questions that we had so we can uhnderstand what we are doing.

-Britney

3rd period: 10/03/08 October 6, 2008

today in class we reviewed over are homework assignment last night which was out of the workbook page 42 1-11 odd. then we practiced problems dealing with solving quadratic inequalities with the whiteboards. Then mrs.hawn passed out the tests at the end of class.

3rd block: 9/26/08 October 1, 2008

Friday we took a big test on quadratic equations and the different ways of solving them.  We had to show our work using the graphing method, Squares, and quadratic formula. You can use your calculator or just work it out, she give us the option. The test consisted of some mulitpul choice questions and the ones that were wronge you had to explain why and give an simplified version for example.  Then, there were also just questions to work out and there was also a very hard bonous question to go alonge with it.  We also had to find the vertex,max/min,y-int, roots, and transformations.  Also, there were examples of some porabolas and they had to be labeled as rational, irrational, complex, and all real numbers.  The calculator was very helpful for this doing this and almost everything when taking the test.  You had to use it to graph and see the parabolas and such. 

 

  Fridays test is pretty fair if the quadratic formula and the TI-83 are used correctly.

3rd Period: 9/29/08 October 1, 2008

Yesterday in class, we learned how to solve quadratic word problems. Using the equation h(t) = -16t^2 + t you can solve the projected path of an object. You sketch the graph and find where the object is launched from (launch) max height of the object(max) and where the object hits the ground (land). To find the launch, use your calculator and find the value of the equation. To find the max, find the maximum value and where the object hits the ground, the zero value.

3rd block: 9-19-08 September 22, 2008

In class today, we learned how to solve quadratic equations by factoring. An example of this was x^2-4x+3=0. It pertains to what we studied in the former chapter, but with the addition of a few steps. We also went over last night’s homework and Mrs. Hawn helped students learn how to solve the problems that they were unsure of. After that we played a game where you had a partner and you went up to the board with two other pairs to solve a given problem. For homework we had page 38, numbers 7-14 and 22.

Save the animals; go vegetarian.

3rd Period: 9/17/08 September 18, 2008

today we re-learned how to do trinomials and finding square roots of numbers.. We
Practiced on the white boards and hawk showed us a bunch of problems on the
overhead and the board and hw is in our WB pg. 39 (6-8), (22-24) & 38 (5-6)

Malcolm