Matrices - The Math Behind the Code

In this unit we have discussed how to add, subtract, and scalar multiple matrices.
Then we learned how to multiply matrices, find the determinate and use determinants to solve systems of equations(Cramer's Rule).
Now we are learning how to find inverse matrices. We will use Inverse matrices to solve systems of equations and to write secret codes.

We completed a Texas Instruments activity .

Students will be creating their own secret coded messages and sending them along with the key to the teacher.

For extra credit, students will complete a webquest. They will not be working as groups but as individuals.

Solving Systems of equations

What are the 3 methods for solving systems of equations?

Your group needs to click here to complete the first webquest assignment.
Each person on the team will complete the practice problems and answer the questions on their own sheet of paper and turn them in to either Ms. McGuire or Ms. Zomer.

Then the group will click here to complete the second assignment. This webquest requires the group to work together and complete a series of tasks and create and end project. It gives you the choice between a poster or a power point presentation. The groups will begin presentations on Tuesday, October 9. The ruberic for grades is given on the website.

Other websites that can be of assistance are
Coolmath.com
PurpleMath

Have fun and Good Luck

Piecewise Functions

Piecewise functions are functions broken into pieces dependent on how x acts. How would you explain to someone not in class how to evaluate Piecewise Functions?

3 Ways to Write Equations

What are the 3 ways to write the equation of the line.

Graphing Methods

Which graphing method do you find the easiest? Which one are you still struggling with?

September 11

Tell me where you were September 11, 2001. What do you remember? What does that date mean to you?

I was a stay at home with 2 small children, ages 1 and 4. We always kept the tv on PBS or Nickelodean. My Husband called and asked if I had been watching TV. I told him of course, and he said "Real" TV. I turned over to a regular network and was shocked as I watched the 2nd plane hit the buildings and then watched as the buildings collapsed. I was in total shock and then fear swept in. Would they start aiming planes at Atlanta? We have the largest International airport in the world. Could we be next? We mourned with the country in the days, weeks, months to follow.

My Brother in law decided that he needed and wanted to do something. he chose to enlist. He ended up in the National Guard as a medic and was sent to Iraq in May, 2005. In October, 2005, His humvee hit an IED. He was sent to Ramstein Air Force base and under went brain surgery and part of his temperal lobe removed to stop the bleeding. He came back to the states and was at Walter Reed Hospital in Washington DC.
While he was in the Hospital he met President and Mrs. Bush when the President came by to personally present to the injured men with their Purple Hearts.

September 11, 2001, changed our lives forever.

Slopes

What is the slope of a line? Tell me everything you know about slopes.

How do you graph an equation using input output tables?

Explain how to graph en equation using input output tables.

Functions and Relations

What is the difference between Functions and Relations?
What is the Domain and Range?

Chapter 1 Test

Tell me what you thought about the test. What was your weakness? What do you think you did the best on? What could you have done differently to prepare for the test? Was there anything I could have done differently to prepare you for the test?

Compound Inequalities and Absolute Values

How do you solve compound Inequalities?
How do you solve Absolute value equations and Inequalities?

CoolMath.com

Please go to CoolMath.com and explore. Then come back here and tell me what you have found. Tell me anything you think is cool and tell me what you think is bad about the site.

Solving Equations

Please give detailed information on HOW TO SOLVE EQUATIONS.

Welcome to blogging

Please Tell us a little about yourself. Name, Interests, Sports, Hobbies, Clubs, Anything you want to tell us about you. Include what you like or dislike about math.

Homework White Day 4th period

8/20/07 Classwork - worksheets 1.1
Homework - Worksheets 1.2

8/22/07 Homework - Worksheets 1.3

8/24/07 Journal entries1. Explain how to solve equations.2. Explain how to solve for for one variable in equations with more than one variable.3. Tell us about you.
Homework - Worksheets 1.4-1.5

8/28/07 Homework - p 45; 13-36 every 3rd

8/30/07 Classwork - Journal entry –What are the steps for solving compound inequalities and absolute values?
Pg 53 1, 2, 4, 7, 10, 13
Homework - Pg 46 39, 40, 43, 44
Pg 53 – 54 17-44 every 3rd, 47-50

09/10/07 Homework: p 71

9/12/07 Classwork: p 79 2,3,4,7,10,12,14;
Homework: p 79-80 20,23,26,29,32-35,37,39,41,43,45,47

9/14/07 Classwork: p 86 10,11,14,15
Homework: p 86-87 19,22,25,28,40,41,43,46

09/18/07 Classwork p 95 4-11
Homework: p 95 13,16,17,19,22,25,27,35,38

09/20/07 Classwork p 117 5-8
Homework: p117 13-20

09/24/07 Classwork p 125 4-9
Homework: p 125-126 12-17,19-25odd

09/26/07 Ch 2 Review

10/02/07 Classwork: p 155 1, 13, 14, 17
Homework: p142-143 11, 12, 13, 20, 32, 33, 34
pg 152 11-13, 23-25

10/04/07 Classwork: complete the first assignment in the group projects. Information located on the blog about systems of equations.

10/16/07 Homework: P 159 (8-10,12-14)

10/18/07 Homework: p 181 (5,13,19,24)

10/26/07 Homework: p 203(11-18,23,24,29,31,33,35)

10/30/07 Homework: p 211(11-16,18,20,21,26,27,28)

11/06/07 Homework: p218-219 (14,16,18,24,26,28,36,38,46,48)

11/09/07 Classwork: p227 (7-9)
Homework: p227 (13-21)

11/13/07 Classwork: TI activity on inverse matrices 1-4

11/15/07 Classwork: Finish TI activity started on Tuesday.

11/26/07 Classwork: p 253 (1-9)
Homework: p253-254(17-20,23,26,2,32,34,38)

11/28/07 Homework: p 260-261(25,28,31,34,35,38,40,47,53,56,62,65,68,71,74,77,80,92)

Homework Blue day 1st period

8/17/07 Classwork - Worksheets 1.1
Homework - Worksheets 1.2

8/21/07 Classwork - Post a comment on to the class blog telling us about yourself
Homework - Worksheets 1.3

8/23/07 Classwork - Post comments to the blog
Homework - 1.4 worksheets

8/27/07 Homework p 45; 13-36 every 3rd

8/29/07 Classwork - Journal entry –What are the steps for solving compound inequalities and absolute values?
Pg 53 1, 2, 4, 7, 10, 13
Homework - Pg 46 39, 40, 43, 44
Pg 53 – 54 17-44 every 3rd, 47-50

09/07/07 Homework: p 71

9/11/07 Classwork: p 79 2,3,4,7,10,12,14; blog
Homework: p 79-80 20,23,26,29,32-35,37,39,41,43,45,47

9/13/07 Classwork: p 86 10,11,14,15
Homework: p 86-87 19,22,25,28,40,41,43,46

09/17/07 Classwork p 95 4-11
Homework: p 95 13,16,17,19,22,25,27,35,38

09/19/07 Classwork p 117 5-8
Homework: p117 13-20

09/21/07 Classwork p 125 4-9
Homwork: p 125-126 12-17,19-25odd

09/25/07 Ch 2 Review

10/01/07 Classwork: p 155 1, 13, 14, 17
Homework: p142-143 11, 12, 20, 32, 33, 34
pg 152 11-13, 23-25

10/03/07 Classwork: complete the first assignment in the group projects. Information located on the blog about systems of equations.

10/19/07 Classwork:p159 8-10,12-14

10/23/07 Review for Ch 3 Mini Test

10/29/07 Homework: p 203(11-18,23,24,29,31,33,35)

10/31/07 Homework: p 211 (11-16,18,20,21,26,27,28)

11/07/07 Homework: p218-219 (14,16,18,24,26,28,36,38,46,48)

11/27/07 Classwork: p 253 (1-4)
Homework: p253-254(17-20,23,26,2,32,34,38)

11/29/07 Homework: p 260-261(25,28,31,34,35,38,40,47,53,56,62,65,68,71,74,77,80,92)

Welcome to Ms. McGuire's and Ms. Zomer's Informal Algebra 2 class. We hope you all have had a great summer and are ready to get started in a new school year. We have a lot of new and some old things to share with you.

Let's begin with what you will need for class. This year you will be required to keep a 3 ring binder. I would recommend dividers to keep notes and homework seperated. I would also recommend keeping a pencil holder in your notebook. You need to use pencils in class, NOT PENS!! Also make sure you have plenty of paper.

Something new we are going to do this year is to keep a math journal. You can do this 1 of 2 ways: you can either keep a notebook in class or a section in your binder or you can keep a blog online. We will go over blogs more in class. If you choose to keep a paper journal, you can keep your journal in class. I will give you a place to store them.

Calculators are a must for class. You can get one at Walmart for about $10 that will do what we need you to do. Any scientific calculator will do. A good one is the TI-30x. A graphing calculator would be nice but is not required. Good graphing calculators are the TI-83 or TI-84.

We will be using this blog to help post homework and other news that you may need, along with some help.

I look forward to working with each of you this year.