Algebra, Period 3

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Location: Eugene, Oregon, United States

Thursday, January 29, 2009

Graduation Video Problem

We cleaned out the math section of our notebooks today. Students should only have a few papers in their math sections, related to systems of linear equations and problem solving.

Students were given 40 minutes of class time to work on the Graduation Video Problem. Most were able to get at least 2/3 of the assignment done in class

Tonight's Homework: Finish the Graduation Video Problem and the white worksheet on measurement.

Wednesday, January 28, 2009

Solving Systems of Linear Inequalities

We reviewed how to graph inequalities (solid or dotted line, how to determine where the shading is), and then used that information to graph two inequalities on the same coordinate grid. The intersection of the shaded areas ends up being the set of points that meet the parameters of both of the original inequalities.

Tonight's Homework: Lesson 7.6 ( 16 - 24, even) Please use different colors to graph each of the inequalities for a problem. The answer will be the area where the colors are mixed.

Monday, January 26, 2009

More Work on Systems of Linear Equations

Today, we turned in homework, and received weekly grade slips and last week's graded work. We reviewed the three different ways to solve systems of linear equations (graphing, substitution, linear combinations) and the three types of solutions that could result (point of intersection, no point of intersection, or an infinite number of points of intersection). Systems that have no point of intersection show parallel lines. Systems that have an infinite numbers of points of intersection are coincidental lines.

Students spent about half the period working in groups on the Rock Band problem. Students will finish working on this problem in class on Tuesday.

Tonight's Homework: Complete the yellow worksheet, and show your work. Also do Lesson 7.4 ( 19 - 21, 23 - 25, and 28 - 29 ).

Friday, January 23, 2009

Using Systems of Equations in Real Life Situations

So, when will we ever use these strategies for solving systems of equations in real life? Today we discovered the answer to this question by looking at word problems related to buying bird food for feeders, riding different rides at a carnival, determining the number of coins in one's pocket, and just random number problems.

Tonight's Homework: Complete the worksheet you received in class today. Be sure to show your work, and use an algebraic approach when you solve each problem.

Thursday, January 22, 2009

Solving Systems of Equations by Linear Combinations

Today, we learned yet another way to solve systems of linear equations. This method finds the intersection of lines without graphing and without substituting. Today's focus was on combining the two equations, with the intent of eliminating one of the variables from the resulting sum. Please refer to Lesson 7.3 in your textbook for specifics on how to solve systems of equations using the linear combination method.

Tonight's Homework: Lesson 7.3 ( 31 - 37, all). Once again, to get full credit, please show all work.

P.S. Confirmation notes were sent home with students whose parents requested conferences last week. Please look for the note inside a sealed envelope.

Wednesday, January 21, 2009

Solving Systems of Equations by Substitution

We learned another way to solve systems of linear equations today. This method finds the intersection of lines without graphing. Please refer to Lesson 7.2 in your textbook for specifics on how to solve systems of equations using the substitution method.

Tonight's Homework: Lesson 7.2 ( 17 - 29, odd). To get credit, please show all work.

Tuesday, January 20, 2009

Chapter 7--Systems of Linear Equations

Today, we began a new unit, and the material we'll be studying is in chapter 7 of the textbook. We will be solving systems of linear equations, meaning we will be trying to find the point that two or more lines actually have in common. This point will be identified as the point of intersection. For today's lesson, we will graph two lines on a coordinate grid, and determine the point where the lines intersect.

Tonight's Homework: Lesson 7.1 ( 20 - 28, all). Please remember to complete all work on grid paper.

Friday, January 16, 2009

Concept 10 Test Taken Today

After reviewing last night's homework, students completed the tenth concept test in class. Most students were able to complete this and an additional sheet with 6 problems on it. We will begin a new unit of study on Tuesday.

Tonight's Homework: Complete the worksheet if you didn't do so in class today. Enjoy the three day weekend!

P.S. Taylor, I have received your concept 9 test but nothing else. Hope things didn't get lost.

Thursday, January 15, 2009

Problem Solving Day

Students solved a geometry-based problem in class today. Many forgot to verify their results by solving the problem a second, different way. Ouch!

Tonight's Homework:
Complete the white "Algebra Relationships" worksheet if you didn't get it done in class. Study for the concept 10 test.

Wednesday, January 14, 2009

Results from Concept Test 9 and Preparing for Concept Test 10

Students received scored Concept 9 tests today. We reviewed the major sticking points that cost students precious points, and, in some cases, enough points to not pass the test.

Afterwards, students worked in groups on a review sheet for Concept 10.

Tonight's Homework: Complete the Concept 10 Group worksheet. Do problems 17 - 22 on page 366, and Lesson 6.5 ( 15 - 22, all ). The Concept 10 test will be given on Friday, January 16th.

Tuesday, January 13, 2009

Concept 9 Test Taken in Class Today

Five students were unable to come to class today. I hope all is well with each of you.

Signed grade slips and conference letters were collected. Those who came to class took the concept 9 test. Most were able to complete the test with at least 15 minutes left over to start on homework.

Tonight's Homework: Lesson 6.5 ( 43 - 48, 50 - 60 even, 70 and 71 ). Please remember we will be taking the Concept 10 test on Friday, January 16th.

Monday, January 12, 2009

Recognition Assembly Cancels Majority of Class

Congratulations to the 15 of you who were recognized for academic achievement, improvement, effort or outstanding citizenship at today's awards assembly. I am so proud of all of you! Actually, I am proud of all of my algebra students, as you are working very hard to do well in all of your classes, including mine.

Because we only had 20 minutes of actual class time, no new homework was assigned.

Tonight;s Homework: Get the conference letter signed so you can return it to me tomorrow. Study for the concept 9 test, which will be given in class on Tuesday.

Friday, January 09, 2009

Stop the Drumming!

Today, we took the concept 8 test, amid lots of drumming and cow bells and other rhythmic distractions. All survived, but we had to groan and laugh at the number of disruptive sounds we endured. Next week has to be better, don't you think???

Tonight's Homework: Complete all 3 pages of the concept 10 practice test for Monday.

Thursday, January 08, 2009

Reviewing for the Concept 8 Test

Today we spent the period reviewing for the upcoming 3 concept tests. Concept 8 test will be taken in class on Friday. We will take Concept 9 test on Tuesday, and then take the Concept 10 test on either Thursday or Friday of next week. Students were given a review sheet for concept 10 to complete as homework, and then given a choice of two review sheets to complete for extra credit.

Tonight's Homework: Complete the practice worksheet for concept 10. Please come to class ready to take the concept 8 test.

Wednesday, January 07, 2009

More on Graphing Inequalities on the Coordinate Plane

Students were given a list of 5 easy steps to use when graphing on the coordinate plane. Afterwards, each student took a self-assessment to determine how much growth they've made in their abilities to solve problems related to linear equations.

Tonight's Homework:
Complete both sides of Palm Worksheet 7 and 8. Be sure to shade!

Tuesday, January 06, 2009

Graphing Inequalities on the Coordinate Plane

Welcome back and Happy New Year!

We spent a considerable amount of time reviewing things related to linear equations (slope, y-intercept, parallel lines, perpendicular lines, standard form, slope-intercept form). Students were encouraged to ask clarifying questions to help prepare them for the upcoming concept tests.

We talked about graphing inequalities and how these are similar to graphing equations. Students learned about using the origin as a test point to help them determine which side of the line to shade.

Tonight's Homework: Complete both sides of the worksheet.