Math 125 Introductory Algebra

Introductory Algebra - August 2008
Math 125 - Assignments: 10/20 - 12/5
Earl Rodd erodd@malone.edu Extension 8546 www.malone.edu/erodd

Monday 10/20

Due:

To work yourself and check: 25, 27, 29, 31 Warning: You should do at least some of these and check because all of the homework except 38 is this same kind of problem. If you have an error in your thinking, you will get them ALL wrong.
To Hand in: Problem set 3.3b: 26, 28, 30, 32, 34, 36, 38

Class:

Review homework
Work with equation of a line
Note: A sample exam 4 is availble here to help you study.

Wednesday 10/22

Due:

To Hand in: Problem set 3.3c: 36, 38, 40, 42, 44, 48, 50 62, 63, 64

Class:

Work with equation of a line
Inequalities in two variables

Friday 10/24

Due:

Problem set 3.3d: 52, 54, 56, 58, 60
Problem set 3.4a: 2, 4, 6, 8 (Graph These! Be sure to shade the solution set!)

Class:

Review inequalities
Introduce variation

Monday 10/27

Due:

Problem set 3.4b: 40, 46
Problem set 3.8a: 2, 4, 6, 8, 14

Class:

Review homework
Variation

Wednesday 10/29

Due:
Class:

Exam 4
Note: A sample exam 4 is availble here to help you study.

Friday 10/31

Due:

Problem set 3.8b: 10, 12, 16, 18, 22, 26

Class:

Review exam
Review homework
Systems of equations
Note: A sample exam 5 is available here. Note that problems 7 and 8 on the sample require you to first finish writing the problem!

Monday 11/3

Due:

Problem set 3.8c: 20, 24, 26, 30, 32, 38, 42, 44a,c

Class:

Systems of equations: Substitution

Wednesday 11/5

Due:

Problem set 4.1a: 2, 4, 6, 8, 10 (These must be on graph paper- they cannot be done by hand.)

Class:

Review homework
Note: We do not do section 4.2.
Determinants

Friday 11/7

Due:

Problem set 4.1b: 12, 14, 18, 28 Note: These are to be done using the addition method!! Using the wrong method will be marked wrong!
Problem set 4.1c: 32, 36, 40 Note: These are to be done using the substitution method!! Using the wrong method will be marked wrong!

Class:

Review homework

Monday 11/10

Due:

Print This homework and work the problems on the sheet you print. Be sure to follow directions for each set!!
Problem set 4.3: 1, 2, 3, 4, 5, 6, 7, 8. SHOW WORK!! This means show the determinant, the two products and the answer. Papers with just answers will be marked WRONG! For example: fully showing work: and the absolute minimum work shown to receive credit:

Class:

Review homework
Cramer's rule
Word problems

Wednesday 11/12

Due:
Class:

Exam 5 - Through 4.3. Note: A sample exam 5 is available here. Note that problems 7 and 8 on the sample require you to first finish writing the problem!

Friday 11/14

Due:

Counts as 1/2 assignment: Problem set 4.4a: 1, 2, 3. For credit, you must show work (show the determinants!).

Class:

Review exam
Number problems and coin problems

Monday 11/17

Due:

Problem set 4.4b: 4, 5, 6, 7, 8 For credit, you must show work (i.e. show the determinants).
Problem set 4.5a: 1, 2. ZERO credit for just writing answers. You must show equations. You may solve equations using the addition method, the substitution method, or Cramer's rule.

Class:

Review Cramer's rule
Number and coin problems

Wednesday 11/19

Due:

Print these problems and write answers on the sheet. Note that the exercise asks you to write equations, not find numerica answers!

Class:

Number and coin problems.

Friday 11/21

Due:

Problem set 4.5b: 3, 4, 25. BONUS: 7

Class:

Monday 11/24

Due:

Problem set 4.5c: 5, 26, 27 NOTICE: For 5, you are just to write the equations, not solve them, since there are 3 equations and we have not worked on how to solve. them. For 26, solve the 2 equations. Problem 27 looks like it has 3 equations, but look carefully. You can easily make it into two equations!

Class:

Review homework if there are questions.
Answer any questions on items covered on the exam.
Review for final - for those not taking the final, attendance at this session is optional.

Wednesday 11/26

Due:
Class: NO Class Thankgiving Holiday

Friday 11/28

Due:
Class: NO Class Thankgiving Holiday

Monday 12/1

Due:

Print these problems and work the problems on the sheet. You are to write equations and then solve them. No credit for just writing numeric answers. Also, you must write which method, addition, substitution, or Cramer's rule, you used to solve the equations.
Note: These will not be collected and graded. We will go over all the answers in class. If you try to work them and then follow in class, you will be well prepared for the exam!

Class:

Review homework to prepare for exam 6.

Wednesday 12/3

Due:
Class:

Exam 6. Notice: A sample exam6 is available here for you to use to study.
Note: Grades on exam 6 should be posted online by 6PM Wednesday. Your online grade will also show your current grade without taking the optional comprehensive final and what grade you need to make on the comprehensive final to obtain a certain grade in the course.
If you plan to take the final, I need to know either by signup during class today, signup in class on Friday, or email me by 10AM Friday. If no one signs up for a particular time, I will not be there!
Times available for optional comprehensive final:
- Thursday Dec 4 at 11:30-1:30 come to TS-240.
- Friday Dec 5 at noon-2PM in TS-220
- Friday Dec 5 at 2-4PM in TS-271
- Saturday Dec 6 at 10:30AM-12:30 in TS-271
Note: Since this exam is given multiple times, it is student repsonsibility to not tell other students problems on the exam. Students taking it at the later times should be careful to not talk to or study with those who have taken it.
Note: A Guide for Preparing for the Final is available here. It shows clearly which textbook sections were (and were not) covered and described common student difficulties.

Friday 12/5

Due:
Class:

Trial of new alternative evaluation instrument (alternative to SIRs you may have seen in other classes). It will be helpful if as many as possible attend to participate.
Review exam 6.
Answer questions
Review for optional comprehensive final.