College Algebra Workbook

Please provide credit to me when sharing all or parts of this workbook with other educators, even if you have modified it to suit your course needs. This work is protected under Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.

Instructor Guide

Over Summer 2024, I was fortunate enough to be able to film myself teaching every single section out of the workbook, using group work as intended. These videos are posted on the password protected page linked below. These are intended for instructors to view only, hence the password. Contact me directly (my information is at the bottom of this page) to request the password if you are a teacher. If you are teaching Math 18A at SJSU specifically, then the coordinator should have provided the password. Reach out to them if you misplaced it.

Below is a written out how-to guide for using this workbook, if you prefer reading over watching. It covers topics such as how to distribute this to your students, the intended flow of the lessons, and how to implement group work following the workbook.

I have also included a sample of how I teach Section 1.2 to give you a concrete example of how I intended the workbook to be used.

Use the buttons here to jump to your desired section or just scroll down.

Getting Started

Before the term starts, you need to determine your answers to the following questions. Students do better when you have consistent classroom policies, especially when it comes to group work. Avoid changing your policies during the term.

Workbook Structure

This workbook is broken into four chapters:

Chapter 1 - Solving Algebraically

Chapter 2 - Graphs and Functions

Chapter 3 - Polynomials

Chapter 4 - Exponentials and Logarithms

Each chapter is broken into sections that were designed to be taught one section per day in 75 minute classes, but you should be able to adapt the workbook to any schedule. Each section consists of a lesson outline to be used in class and exercises to be assigned as homework or additional practice.

IMPORTANT NOTE:
You are NOT meant to actually lecture on the material in Section 1.1! It is supposed to be review from Intermediate Algebra, i.e., it is prerequisite material for this class. The idea is you can spend half of your first day going over your syllabus without feeling rushed to start new material. When you finish the syllabus overview, they can start getting used to working in groups by trying the practice problems in Section 1.1 together for the remainder of the class time. If they don’t finish all the review problems, then they can work on it at home. Please watch the video for Section 1.1 on the page linked above if you are confused.

For all other lessons, you will see several gray boxes throughout the outline. These designate areas where students will take notes while the instructor gives a mini-lecture on the relevant material. I’ve included an image of the first page of Section 1.2 as an example. There you will see a gray box with two key vocabulary words. The instructor would provide the definitions in a mini-lecture format while every student takes notes in their own copy of the workbook. The students are not expected to already know this information coming into class (though some might be familiar with some of it from prior courses).

When an example problem is not in a gray box, the students should be given the opportunity to attempt it before the instructor reviews the solution. On the first page of Section 1.2, we see three part example. Some larger problems have a scaffold to guide the students through smaller steps. I like to ask certain groups to stand up and write their work on the board for the whole class to see it. Once the students have had adequate time to attempt the examples, the instructor should review the solutions before moving onto the next gray box mini-lecture.

The intention is for students to attempt the example problems in small groups during class, but there are alternative approaches (see FAQ). If you utilize group work, it is important that every student takes their own notes in the gray boxes and that every student writes down the solution for each example, even if they are lost and end up just copying their group mates. The idea is that filling out the workbook is the notes for each day of class. So if only one person in each group takes notes and writes all the solutions, then only that person has notes for the day.

In the Exercise Book, there are 4 to 5 exercises which are intended to be assigned as homework. The book is formatted so that they should have enough room to write out their work for each problem. If you use alternative or online homework assignments, then these exercises can just be used as additional practice for your students. Appendix A contains hints for these exercises, should any student need them. Appendix B provides even more exercises that are similar to the ones at the end of each section, if your students need additional practice. Answers are provided for the Appendix B exercises, but no work is provided for those solutions. This is especially useful to help students prepare for exams.

The main Workbook itself contains an Appendix with more details and alternate methods to approaching certain problems. If you are teaching College Algebra at SJSU, then these are optional and do not need to be covered in class. However, you might find them helpful to answer questions from especially inquisitive students. In particular, I suggest that you go to that Appendix yourself if you are unfamiliar with the factoring technique taught in Section 1.4 (unfortunately many people are told that they should just magically “see” the factors and were never actually taught how to factor algorithmically…)

Sample Lesson

You need to actually read through the key before each and every lesson! You might feel like you know College Algebra very well, but it is easy to stumble if you haven’t read the key ahead of your class. This can cause a lot of confusion for your students, especially if they are taking notes directly in the workbook! You need to make sure you are familiar with the pages they will be filling out so that you can guide them through it as smoothly as possible.

If you are particularly unsure how to explain something or what pacing to follow, go watch the videos linked again here:

AGAIN IMPORTANT NOTE:
You are NOT meant to actually lecture on the material in Section 1.1! It is supposed to be review from Intermediate Algebra, i.e., it is prerequisite material for this class. The idea is you can spend half of your first day going over your syllabus without feeling rushed to start new material. When you finish the syllabus overview, they can start getting used to working in groups by trying the practice problems in Section 1.1 together for the remainder of the class time. If they don’t finish all the review problems, then they can work on it at home. Please watch the video for Section 1.1 on the page linked above if you are confused.

This sample lesson will be for Section 1.2, which is where you will actually start teaching like normal.

BEFORE CLASS STARTS:

I arrive early to rearrange the desks into groups of 4. You can ask students to help, but some guidance will be necessary. Specifically, you want to make sure there is sufficient space for you to walk around.

I prefer to arrange the desks in the pinwheel patterns you see pictured. If you have desks with an arm rest like these, be mindful to arrange them in a way that is easy to get in and out of. I try to to put them at an angle so that no one is facing entirely opposite the board, but I also just tell the students with a poor view to physically shift their desks when I am lecturing and then shift back for group work.

Desks arranged for a traditional lecture.

Desks in the same room rearranged for group work.


ASSIGNING GROUPS:

As students enter the classroom, I have them follow the pictured guidance for getting their group assignment.

(1) Students first sanitize their hands (this was done when we were still recovering from the pandemic, but, hey, it’s not a bad habit to continue).

(2) Students draw a card (the deck is limited, see below).

(3) Once students take note of the cards face value, they immediately return the card (they tend to lose them if they take them to their desks).

(4) They go find the group table matching their card’s face value. If you zoom in on the previous images, you can see that I put signs on the group tables to indicate where each face value should go.

I do not put out the entire standard playing deck. For example, I had about 34 students in each class. This means I can make seven groups of 4 students and two groups of 3 students, assuming everyone shows up. That is a total of nine groups, so I only put out face values of Ace, 2, 3, 4, 5, 6, 7, 8, and King (I swapped out the 9’s for Kings because students often only paid half attention to their card and mixed up 6’s and 9’s…).

I also did not put out all four suits at once. I typically started with just two suits (say spades and diamonds) of the above face values. Once those ran out, I’d put out another suit (say hearts). Then if those also ran out, I would put out the final suit (clubs, in this example). I do this because I rarely had perfect attendance on non-exam days. Basically, I’m rigging the deck to evenly spread out the students, even when a non-zero number of students skip class.

And just to reiterate, I set all of this up for them to do as they enter the classroom. You waste time and cause confusion by having everyone move desks after they’ve arrived. I strongly recommend that you find a system that has all the groups completely set up and ready to go before class starts.


PAGE 15 - The start of the lesson for Section 1.2:

I begin by greeting the class. I tell them any announcements about upcoming assignments or exams. For the first three to four lessons, I will remind them of the basic structure of the workbook. Something like, “Just as reminder, since we are still getting used to the workbook, for the gray boxes, I will lecture at the board and you will take normal notes. Then I will ask you to attempt the following example or examples with your group and everyone should be writing the solutions in their own workbook. We will switch back and forth between grey boxes and group work as we go through the lesson.” Then, I tell them which section we are working on with the corresponding page in the workbook. In this example we are going through Section 1.2 starting on page 15.

I give a mini-lecture to define the terms listed in the gray box (“system of equations” and “linear”). I do this verbally while I simultaneously write them on the board. Although they are sitting in their assigned groups, every student should be quietly following along and writing their own notes.

After going over each definition, I ask the students to work on Example 1 with their group mates. While they are discussing it amongst themselves, I am copying the example onto the board, leaving space for the blanks to be filled in.

They should finish this example fairly quickly and are probably ready to move on by the time I finish copying it onto the board. I would request the Ace group to write their work for part (a) on the board; the 2 group to write their work for part (b) on the board; and the 3 group to write their work for part (c) on the board. I encourage them to all come up together to make them feel less put on the spot. I also let them pick their own volunteer member(s) to write on the board, but if they are being too slow and hesitant, I will hand someone specific a marker.

After every part has work written on the board, I will briefly review each answer out loud with the class and correct where necessary. Be encouraging! Tell them that it’s ok that they didn’t quite get the right answer and try to give them a chance to correct themselves before giving them the answer.


PAGE 16:

Now we transition into another mini-lecture. This time I will give them the general idea of the substitution technique by walking them through the entirety of Example 2.

More complicated examples like this are sometimes included in gray boxes so that you have a chance to demonstrate one before they try it. When you feel it is necessary, you can also make up small examples to add to gray boxes.

I try to engage the students in these mini-lectures, when appropriate, through call-and-response. In this example, I try to ask very leading questions to get them to see why solving equation A for x is the best choice here. They often catch on, but sometimes I have to be a little more direct. Just be flexible! Every group of students is different.

On page 17, they have the very similar Example 3 to try out substitution in groups.

While everyone is working, I will now ask the 4 group to come up to the board and write their work. I just keep rotating through the groups for each example.


From here, it’s just rinse and repeat. Mini-lecture for the gray boxes; let them try non-gray box examples in groups; have some group write their work on the board for that example; verbally review their work with the entire class; repeat.

I let the groups pick their own representative and they can send multiple people up if everyone is feeling shy. College Algebra students tend to lack confidence, so I try to not put too much pressure on any one student. In particular, I do not make them verbally present their work in front of the class. They may return to their seats and, after it seems like everyone else has also finished the problem, I will bring the class back together to discuss the solution.

Make sure you keep the class moving at a reasonable pace. Try to not rush them, but make sure you get through the entire lesson so you don’t fall behind schedule. Not every group needs to complete the example before you start reviewing it, but try to let the majority finish. If the group you called up the board is lost, ask a different group instead and come back to them to show a different example. If the whole class seems lost, then just stop them and demonstrate the example to the whole class yourself.

I have found it to be very helpful to insist when they work on examples that they need to talk before they start writing. I say this to them out loud and often. Even if it’s just confirming, “yes we would all start the problem this way,” it will help the more shy students get the assistance they need instead of staring silently at their workbook while their more proficient group mates rush through the problem and ignore each other.

While they work on examples, move around the room and encourage people who look lost to speak up and ask for help. Encourage the proficient students to slow down and check in on their group mates and offer help.



ADDITIONAL REMARKS:

  • I cannot emphasize this enough: You are NOT meant to actually lecture on the material in Section 1.1! It is supposed to be review from Intermediate Algebra, i.e., it is prerequisite material for this class. The idea is you can spend half of your first day going over your syllabus without feeling rushed to start new material. When you finish the syllabus overview, they can start getting used to working in groups by trying the practice problems in Section 1.1 together for the remainder of the class time. If they don’t finish all the review problems, then they can work on it at home. Please watch the video for Section 1.1 on the page linked above if you are confused.

  • Do not just stand at the front of the classroom idly while students attempt the examples. Walk around, look at their papers, and eavesdrop to figure out how they are doing. This also makes it more comfortable for students to ask questions as you walk by instead of needing to call you over.

  • Students can be hesitant to ask questions due to embarrassment, which is why it is important to walk around. In particular, you want to watch out for individual students who are not participating in their groups because they are lost and embarrassed. Gently encourage the other students to explain what they are doing and to make sure everyone is on the same page before they move on.

  • If a group asks a question, try to avoid just directly giving them the answer. Instead ask leading questions and encourage them to ask each other instead of you. You can also tell them they are allowed to consult other groups nearby if everyone is stumped.

  • All of these still apply if you opt for a more traditional style where students attempt the examples individually or in pairs instead of groups.

Frequently Asked Questions

Acknowledgements

I couldn’t have made this without the encouragement and support from the people around me. This list is partially included in the workbook itself, but I want to add to it and reiterate how incredibly thankful I am to the following folks:

My mom for being my first student.

My dad for teaching me that I really can do it myself.

John Baldwin for believing in me since community college. He stuck by my side through some of my most difficult college experiences. I will be forever grateful for his unwavering support and confidence in me.

Emily Henderson for being one of the coolest graduate classmates I was lucky enough to meet at SJSU. I seriously doubt I would have made it through teaching and being a student myself and taking on this writing project without my awesome sauce study buddy.

Evan Tauzer for volunteering to pilot this workbook in his classrooms, but also for not holding back his sass when I asked for critique.

Trent Osland for volunteering to pilot this workbook in his classrooms too, but also for his kind feedback and delightful devotion to Da Bears.

Kenneth Jones for being my person, my embodiment of warmth and safety, and for sheltering me from my self doubts throughout this project.

My baby girl Laika for being the absolute best pupper there is.

And last, but not least, Dr. Tim Hsu, my advisor on this Master’s writing project. This workbook wouldn’t exist if he hadn’t (somewhat begrudgingly) agreed to undertake this math education project with me or if he hadn’t pushed me to give group work a proper shot as an instructor. Thanks, mathdad!

A dog wearing chemistry goggles with a cup of tea

Of course, I must pay the dog tax. Here is Laika, demonstrating the importance of lab safety.