GUIDELINES FOR TEACHING MATH
A Handbook for Adjunct Faculty Math Matters
CCC
Teaching math can be very rewarding when one
is able to make the subject useful & interesting, get the students
excited & engaged in the learning. Effective math teaching is the
result of many elements. The following thoughts, suggestions & recommendations
for teaching math at CCC may help you be more effective by reminding you
of tips & strategies you already know or, perhaps, providing some
new ones. While some are quite obvious & intuitive, others are the
result of experience & research.
Before you start
Make sure that:
· You attend the orientation session
organized by your Division.
· You have obtained from your Department
a starter packet with old syllabi, handouts, etc.
· You have obtained the detailed course
description & a list of the chapters & sections that you must
cover from the book.
· You have obtained the textbook &
its supplements (e.g., instructors manual).
· You know about the courses prerequisites,
which majors do/do not require it, transferability to other institutions,
etc.
· You have, if required, the appropriate
graphing calculator (with instructions on its use).
· You know when & where your section
meets.
· You know where to find chalk, do photocopying,
find an overhead projector, etc.
· You have the College catalog, spelling
out rules & policies.
· You know what to do in case of an
emergency (inclement weather, sudden illness of instructor or student,
locked classroom, safety problems, etc.)
· You have your class list.
· You know how, when & where to
contact the chairperson & the secretary of the Math Dept., as well
as college security.
Your syllabus
It should be ready for the first meeting with
your class. It is a contract between you &
your students and, except for midstream adjustments,
you should try to abide by it. It should
contain:
· Title & code for the course; number
of credits
· Term, date, time & location of
classes
· Instructors name, office phone
& mailbox, e-mail address.
· Office hours
· Required textbook & technology.
The
CCC Math Depts Web site
This site contains a series of links for online assistance to students
& faculty as well as tips on how to study math.
· Prerequisites for your course
· A list of topics & chapters in
the book to be covered.
· Your attendance & class participation
policies, clearly spelled out.
· Your homework, testing & grading
policies, the relative weight of each test, the nature of the final exam.
Specify how the course grade will be determined; indicate your grading
scale.
· Your policy on cheating & missed
examinations, clearly stated.
· The last day to drop the class without
grade penalty, clearly noted.
· Some instructors make up a detailed
calendar specifying dates for topics & exams.
· Some instructors include the homework
assignments for the entire semester.
First day
This may be the most critical day of the semester
- you send important messages to your class. First impressions endure.
· Remember: you may be nervous but they
are terrified. Put your name on the board & tell them how you would
like to be addressed. Break the ice. Smile at them. Tell them about your
background, your family, even your vacation, whatever will show them you
are a kind and caring human being.
· Call the roll. Handle discrepancies
between class list & attendance.
· Hand out your syllabus - read it out
loud & answer questions about it.
· Discuss how you intend to run the
course, handle homework, tests, grading, attendance, latecomers, disruptions,
missed tests, cheating, deadlines, etc.
· Tell your students what they can expect
from you & what you, in turn, expect from them. Be clear & specific
about this.
· Take a (written) survey of your class
to know each students academic background & goals, professional
aspirations, phone & e-mail, expectations about the course, concerns,
anything about them they feel you ought to know (last math course taken
& when, free time, job, hobbies, learning disabilities, etc.).
· Be clear & strict about prerequisites
& their enforcement & about majors requiring the course.
· You could prepare (or borrow from
a colleague) & have students take a short diagnostic test on essential
material from the prerequisite course. It could be self-corrected. Tell
students with a low score that they will have difficulties & try to
convince them that it is to their advantage to either brush-up well or
re-take the prerequisite course.
· Present an overview of the course,
the main problems it tackles, why it matters, etc. A good way to create
interest in the course is to state some problems they cannot do, but will
be able to do by the end of the term.
· Show up on time & use the entire
allotted time period. You could do a brief review of material they are
supposed to have already mastered.
· Set a serious business
pace & assign homework the first day.
Preparing a lesson
Preparation is essential if you wish to make
the subject relevant & exciting.
· You may need extra preparation time
if you have not taught the course before.
· Before the beginning of the semester,
make an outline of the topics to be covered & how much time you should
devote to each of them so that the entire course content is covered. Try
to stick to this plan.
· Students are quick to detect the under-prepared
instructor; lack of respect & poor attendance usually follow.
· Read ahead of time the appropriate
chapter & sections from the textbook & try to prepare your lesson
following similar approaches, terminology & notation. Read ahead in
the text for the sake of perspective.
· Although you may know the material
well, it is worthwhile to have the main points & examples of your
lesson clearly written on paper. And yet, try not to read directly from
your notes.
· You might start a class by presenting
a brief summary of the previous class topics, for the sake of continuity.
Explain how a new idea fits into the general scheme of the course.
· Find an interesting problem or application
that will motivate students & stimulate curiosity in a new topic.
· When introducing a new concept, try
not to start with an abstract definition. It is better to begin with concrete
examples that students understand & that lead naturally, by the process
of generalization, to the definition & concept you want them to know.
· Sometimes your students will understand
a new concept better if you explain that it is similar to a more familiar
concept reasoning by analogy.
· Never introduce math terminology unnecessarily.
Your audience may not understand your math vocabulary or technical jargon.
Students speak a different language. This is one reason they tend to have
trouble reading the textbook.
· By the same token, never introduce
new symbolism unnecessarily. Students tend to be utterly confused by this.
It has the effect of obscuring the idea being discussed & making it
more difficult to learn.
· Avoid the temptation to tell your
class everything you know about a subject. Concentrate on the core ideas
& examples & return to them periodically.
· Try not to present the problems that
are examples in the text; present similar ones, problems making the same
points. Save the examples in the book for your students to study at home
to reinforce their learning.
· Try to anticipate students questions.
· Decide what to emphasize, where to
slow down & present additional examples.
· Be ready to explain concepts in multiple
ways.
· Be ready to answer questions such
as: Why do I need to know this?, What is this good for?,
What does this mean?, What are the possible real life
applications of this?, Who uses this & why?, What
are the historical origins of this?, Where does this lead?.
· Intercalate historical tidbits &
real world applications for context & added interest.
· Examples should progress from the
simple to the complex.
· Emphasize the inner logic in the solution
to problems. Hammer away the point that in math the clear display of this
inner logic (showing all the steps) as well as the correct answer are
equally crucial.
· Usually, students find an informal
but intuitive & reasonable argument, example or picture to be more
convincing than the complete proof of a math proposition. Professional
mathematicians learn from proofs; students learn more easily from explanations.
· What is obvious to you may not be
so to your audience & may require an elaborate explanation. Be ready
for it. For example: How would you justify to an inquisitive student that
the product of two negative numbers must be positive?
· We want our students to master the
key ideas & techniques presented to them in a math course. However,
let us not lose sight of what the ultimate goal of learning mathematics
is: to be able to reason logically & rigorously, to develop higher
order analytical & problem-solving skills, to adopt a mathematical
outlook.
Your class performance
Your performance in front of your class should
aim for total clarity in what you are trying to communicate.
· Your voice is one of your critical
tools. Speak clearly & slowly in a relaxed voice; fill the room with
it. Gain your classs attention by changing your tone of voice as
you make a point. Modulate your voice & enunciate well.
· Pause for effect before & after
making an important point. State clearly that it is an important point.
Lower your voice. Repeat the point. Write it on the board, underline it,
do not erase it, return to it later. Give examples. Say that they will
be tested on it. Repeat the important point. Ask for questions. Later,
make sure they do get tested on it.
· Think of your lecture as controlled
conversation between you & your audience. It should allow for
communication & interaction between you & your students.
· Make eye contact with your audience,
turn to them for individual attention, flash the emphatic smile, use your
sense of humor, try to engage them all.
· Strive for as much informality in
the classroom as your own personality and the circumstances will allow.
Again, try to inject humor, smile occasionally. A smile helps to establish
a congenial teacher-class relationship & a positive attitude among
your students. By the same token, never give way to anger in the classroom.
· A well-organized use of the blackboard
facilitates learning. Write neatly & in an orderly fashion. Use large
characters. Write in complete sentences. Label. Make it intelligible.
Write all the essential steps, the way you would like them to do it on
a test. Do not clutter a blackboard with your writing. Underline the key
ideas. Use different colors. Divide the blackboard into boxes. Write from
left to right, top to bottom. Fill the boxes in succession. When all boxes
are full, stand aside, read aloud what was written. Emphasize key points.
Pause. Keep quiet. Ask for clarifications. Then, slowly start erasing.
· Try to begin each class with a short
discussion of material with which students feel relatively comfortable,
rather than plunging directly into new territory.
· At the start of your presentation,
write on the board the main goal(s) of the days lesson. Do not erase
this. Explain why it matters. Once this goal has been attained, make sure
your class gets the message by examining the goal statement on the board
one more time. Ask them to summarize how it was achieved.
· When pertinent, provide (or have students
derive) a strategy to find solutions to problems: an algorithmic, step-by-step
approach is easier to apply & remember.
· Encourage conjectures & guesses;
have your students discover certain patterns & ideas by themselves.
· Encourage total participation for
difficult points or create wake up moments by telling everyone
to solve a short problem, show it to a neighbor, raise hands if they have
the same answer, etc.
· Call on all the students: male &
female, young & old.
· Give students a fair amount of time
to consider any questions that you raise. Otherwise they will think of
the question as rhetorical.
· Admit mistakes when you make them.
Thank the students who discover them.
· Manage your time efficiently. Use
all of the available time. If you finish your lesson with some minutes
left, use this time to sum up with your class the lessons main points
& their applications, a sense of where you were, where you are &
where you are going. Organize groups to get them working on the homework.
Have them write their solutions on the board.
· Dont rush out after class. Linger
for a few minutes so that students may have an opportunity to ask questions.
Erase the blackboard as a courtesy to the instructor of the following
class; return chairs to their original position.
· Analyze & evaluate your performance
& your students reaction after class. Jot notes to yourself
to help you improve future strategies.
Homework assignments
One learns math by solving many problems. Students need to practice the
techniques they have been taught.
· Tell students that prior to working
on the homework they should review class notes & the examples in the
book.
· Make sure that the assignment involves
all the important topics covered in class.
· Make sure that exercises range from
the simple to the more advanced.
· Emphasize that the solution method
matters & that all the important steps should be shown.
· If pertinent, the homework should
include some applications.
· Make sure that the homework prepares
students for the upcoming test.
· Provide incentives or penalties that
prod students to work on the homework: some of it could be graded, included
on the next test, done & turned in by groups, etc. To encourage collaborative
learning, you could grant bonus points to graded homework done in groups
of two or three.
· Ask your students if they had trouble
with the specific problems that contain core ideas of a topic. Do some
of these problems in class.
· If you are collecting & grading
some of the homework, late work is a persistent problem. Students can
be deterred by downgrading late assignments, assigning extra work, etc.
Technology
You may want/have to use technology in one of the following forms: graphing
calculators, computers, the Web, videos & multimedia.
· Calculator use has now become pervasive.
Your students will have to be taught how to do it! They will not read
the users manual. You will have to teach them the basics.
· Prepare or ask one of your colleagues
for a handout with instructions on how to get the needed calculator results.
Make copies for your class.
· Schedule a calculator lesson with
your class, letting them know the date in advance.
· Make sure you have the needed equipment:
overhead projector, cords, viewscreen, etc.
· Select & prepare a varied list
of problems that are covered in the course & that lend themselves
to a simple calculator approach (e.g., graphing, solving equations, generating
a table of values, performing messy calculations, doing statistics, etc.).
Make sure that your examples justify the use of technology.
· Practice your lesson in advance &
have an alternate plan in case of system failure.
· Present the lesson to your class,
making sure that your students practice the problems with you & are
not left behind.
· Make sure that, as the semester progresses,
your students also get tested on the use of this technology (if it is
required in the course). Choose problems that require both math understanding
& calculator use.
· Recall: teaching with technology is
not the same as lecturing. Technology does not replace conceptual understanding
- it should facilitate & reinforce it.
Questions
It is common practice to devote the first part of your class to answering
questions on your lessons or previous homework. You could use this as
a natural springboard for the topic of the day.
· Students should be encouraged to ask
questions during your presentation. When a question is asked, repeat it
out loud for the entire class to hear.
· Some instructors find it effective
to have a supply of index cards in the back of the classroom for students
to write questions about the lecture or homework. Then you can choose
to answer the best or more frequently asked questions at the start of
the next meeting.
· Students tend to be shy & hesitant
about asking questions in class - they may have to be prodded. Instead
of asking, Are there any questions? , you may get a better
response by being more specific: What are the main features of a
parabola?, Do you all know how to find them?, Lets
examine problem 37 on page 186. Did you have any trouble with it?,
What are the main ideas contained in the Central Limit Theorem?.
· You may hear a question that makes
no sense. Avoid sarcasm. Never ridicule or put the student down. You could
respond with: Maybe what you are asking is
?.
· When asked a silly question: respond
quickly as if it is an honest one & move on.
· When asked an unintelligible question:
you could ask in return Could you rephrase that? or Are
you asking about (something sensible)?.
· When asked a question that is off
the subject, tell the student: Lets talk about it after class.
· If somebody asks a good question,
say so clearly: Thats a good question & Im glad
youre asking it.
· When asked a question you cannot answer
- just say: I dont know the answer right now, off the top
of my head. But Ill investigate that point & Ill let you
know the next time. And by all means, do.
· When asked: Is this going to
be on the test?, your answer could be something along the lines
of: It certainly will, otherwise we wouldnt be doing it.
· Again, be ready to answer questions
such as: What is this good for?, Why do I need to know
this?, What does this mean?, What are the possible
real life applications of this?, Who uses this & why?,
What are the historical origins of this?, Where does
this lead?. If nobody asks any of these questions, you could.
· After asking for questions, wait,
while looking at the class, to give the students time to formulate their
ideas. Ditto, when posing a question to the class.
· Propose that each student & a
partner come up with one important question.
· Keep lines of communication open with
your class. Invite them to visit you during office hours. Some may prefer
to e-mail you. Try to be responsive to this. A mid-semester evaluation
survey may allow your students to provide you with valuable feedback -
both for improving your teaching as well as allowing students to self-assess
the effectiveness of their own study habits.
Composing & giving exams
You really have your students attention during an exam cycle - from
the moment they start getting ready for it & until the time they get
it back & graded. Take advantage of this opportunity by making it
a productive learning experience.
· Drive home the important ideas; give
your students a list of the topics & key problems on which they will
be tested. If some of these topics are too involved & time-consuming
for an in-class test, they could be part of a graded take-home project.
· Some instructors feel that a fair
distribution of problems is as follows: 40% on really basic material,
40% on less routine problems that require some thought & a multi-step
approach & 20% on more challenging problems / applications & that
will allow you to discover the more proficient students. More challenging
problems could be assigned bonus points.
· Students deeply resent being tested
on new types of problems they have never seen before. In this regard,
& to encourage good attendance & effective study habits, you can
tell them in advance that you will use three sources of problems: the
examples presented in class, the corresponding examples in the text &,
mostly, the assigned homework problems. This gives you plenty of leeway
& they usually feel it is fair. They want to be reassured that they
will not be unpleasantly surprised on a test.
· You could ask your students to give
you a list of exercises from the homework they feel it would be fair to
be tested on, write the list up on the board & let them know that
you will choose some of those as problems for the next test.
· A practice test, for which you could
provide a solution key, as well as a review session before the exam, are
effective tools that tell students what the central ideas are & what
kinds of problems to focus on for the exam.
· There are many arguments against tests
with a multiple-choice format & in favor of the handwritten, show-the-full-solution
exam. One is the issue of granting partial credit. Also, the handwritten
exam is a form of communication between student & teacher. It allows
the teacher to gauge the extent of the students ability to give
a complete, well-justified math argument & to display problem-solving
skills.
· A well-crafted test should have a
reasonable number of problems of reasonable length, which should not be
inter-connected. Making test questions significantly interdependent is
a form of double jeopardy & should be avoided. The test could be written
in such a way that a problem could be broken down into several parts -
guiding the students through a sequence of steps that culminate in something
of value. Be sure that the questions you ask elicit the basic information
that you seek.
· Some instructors give the easy questions
first to allow the less confident students to get off to a good start.
· When writing instructions for the
exam, clearly indicate that students must show all the steps & justify
their answers.
· Encourage questions during the examination
about the interpretation of the problems, but reserve the right not to
answer some.
· As a concession to the math-panicked
students, some instructors give students the opportunity to rework the
exam at home once it is returned to them. Both the in-class & the
home component are counted as part of the grade.
· To complete the learning cycle, you
could write constructive comments on the students test & prepare
for them a complete solution key that you discuss with them in class.
As an incentive to have them learn from their mistakes & consolidate
previous learning, you could tell your class that you will pick one question
verbatim from the last exam & put it on the next one.
· Try to grade & return tests to
your class within a week or so - while your students still remember the
test material.
· If there is a technology component
in your course, you may find it useful to give your students a graded
take-home project that involves heavy use of technology. Interesting real
life application problems could also be part of this project.
· You should give a cumulative final
exam. It gives the student the opportunity to have a comprehensive, non-fragmented
understanding of the central ideas of the course & a better sense
of their multiple inter-connections. Some instructors tell their classes
that to study for the final they can study from their previous exams -
the problems will not be too different.
· On the subject of make-up tests, some
instructors tell their students that when a regular test is missed for
a well-justified reason, they must take the cumulative final. That score
becomes also that of the missed test. Others tell students that the lowest
test score will be dropped & that the missed test will then count
as the lowest.
Grading
You can think of grading as a learning opportunity for all involved
the instructor gauges how well the material was taught & the test
designed, while students determine how well they know the material &
studied for the exam.
· Put your grading policy on your syllabus
& make it clear to your class at the very first meeting. It then becomes
a matter of public record. You must be firm & consistent when applying
this policy.
· Students may have to be reminded from
time to time of this policy & its implications for them as the semester
progresses. Before the deadline to drop a course, tell your class that
by then they should have a good sense of the level of the course &
their performance so far & that some may be better off withdrawing
from the course rather than risking failure. You may want to meet individually
with those students to drive home this point. The fatally optimistic should
be reminded that acing the final exam is a rather unlikely occurrence.
· Do not discuss a students grade
/ performance in public. Do not compare students to each other in public.
· The more frequently students are tested,
the better they seem to learn. Additionally, the course grade will tend
to provide a more accurate reflection of their level of understanding
& performance. However, there are time constraints. As a rule of thumb,
you should get from them a set of at least 3 scores (including tests,
sets of quizzes, graded homework, projects, etc.) plus a comprehensive
final exam. Some could be dropped. Assign appropriate weights to each.
Some instructors drop the lowest such score. Others apply a changing scale
where the best score gets the highest weight. Whatever grading policy
you decide to implement, it should be fair & defensible (with your
students, colleagues, dean).
· There are times when students will
insist that they know the material, but for various reasons their records
do not show it. At such times you should remind them that the grade is
an indication of their actual performance.
· The course grade should reflect a
students performance during the entire semester. The grade a student
gets should be the grade he or she has earned. It is a done deal, not
a matter to be negotiated.
· We want our students to write correct,
clear & complete solutions to problems. When this is not the case
& when merited, giving partial credit is justified. The process of
giving partial credit is not an exact science but a matter of good judgment,
which we must use fairly & uniformly when grading a test. However,
some students will try to contest it. You should be able to explain &
defend your decision, respectfully but firmly.
· Some instructors also take into consideration
neatness, clarity, intelligibility & organization in their students
presentation of a solution to a problem.
· For the sake of consistency, some
instructors grade one problem at a time.
· If the solution to a problem you are
grading is incorrect, identify the error & indicate the correct step.
You could also write encouraging remarks where the work is especially
good.
· When you return the exams, list the
grade ranges & the median grade on the board.
· It is more appropriate to tell those
questioning your grading criteria to see you after class once the test
is returned. Make sure they have examined the answer sheet first. Dont
rush into a decision: tell the student that you will take the test home
to re-examine the given solution as well as the grading.
· Occasionally, you may realize you
made a mistake or were too harsh when grading a problem. You should admit
so to the student & change the grade.
· Never penalize the honest student.
If a student tells you that her score was added incorrectly & that
she deserves fewer points, thank her for the honesty but do not change
the score.
· Some instructors adopt a rule that
a student will always receive a letter grade which is no more than one
grade below the one he or she has before taking the final exam. Thus,
for example, a student who has an A coming into the final, will get at
least a B in the course.
· You will often hear sad & convincing
stories of why a low grade in your course will have dramatic consequences
(e.g., financial aid, college or job prospects, etc.). You can try to
be accommodating & yet the issue of fairness with the entire class
should not be ignored.
· Keep thorough & well-organized
records of students performances.
· Keep your students final exams
for at least one semester beyond the end of the term. They provide valuable
evidence to defend your grading in case somebody contests it.
· Some instructors feel that only well-justified
& extreme circumstances deserve the grade of incomplete. It certainly
should not be the fall back option for the entire class. Before the temporary
grade of I is granted, you should make specific arrangements
(in writing) with the student regarding when & how it will be removed.
Discipline, honesty & civility
The best approach to foster an atmosphere of civility & counter potential
discipline problems in the classroom is for you to set the tone by presenting
the image, from day one, of a well-prepared, respectful & serious
professional.
· From the very first interaction, you
should strive to make clear to your class what your expectations are,
what will not be tolerated (e.g., cheating, student conversations, reading
the newspaper, eating, sleeping, etc.), how it can be avoided & how
you plan to handle it.
· You are an authority figure in the
classroom (you are older than most, you have a college degree, you give
out the grades, etc.) & there are times when you will be faced with
situations that require exercising this authority, swiftly & effectively.
· Nip behavioral problems in the bud
by courteously but firmly tackling them as soon as you feel the problems
are real. Ignoring the problems may create a widespread, uncontrolled
& disruptive class dynamic for the rest of the term.
· In general, faced with distracting
or disruptive situations, you should focus attention on the behavior,
not on the person. Instead of saying John, stop talking!,
you could comment on the fact that background chatter makes it difficult
for everyone to pay attention. Or, without putting anybody on the spot,
simply tell the whole class: OK, lets quiet down. Of
course, there may be times when the only effective remedy is to directly
tell John to stop talking.
· Avoid debating in class with a student
who is misbehaving. Better to talk with the student after class, in a
friendly & respectful manner. Ask the student what triggers this kind
of behavior & ask/tell him what can be done to avoid a recurrence
of it. You could offer him some choices, allow him to save face.
· On vary rare occasions you may have
to face disrespectful or aggressive behavior from a student. Dont
be confrontational - handle the situation with care. The student may have
serious personal or psychological problems. Courteously ask the student
to see you after class. If the situation seems to be getting out of hand,
you can suspend the class or call security. You can also tell the troublemaker
that you have run out of options & that he should talk to the chairperson
of your department. Make sure you promptly brief your chair/dean on the
situation.
· You must have a policy, laid out clearly
in your syllabus & discussed with your class, regarding instances
of academic dishonesty. The student found cheating should be penalized
as soon as you have reliable evidence. If cheating occurs during a test,
you have every right to give the student a grade of F on the
test or even in the course (unless the student decides to drop the class).
But make the policy clear before the problem happens. And keep the evidence
that prompted you to take such drastic action.
Favorable attributes (of a good math teacher):
· Knowledgeable
· Friendly, caring & helpful
· Enthusiastic about the discipline & its teaching
· Fair
· Clear
· Responsive
· Responsible
· Well organized
· Punctual
· Patient
References
1. How to Teach Mathematics (2nd Ed.), by Steven G. Krantz, American Mathematical
Society, Providence, RI, 1999.
2. A Handbook for Mathematics Teaching Assistants
(Prelim. Ed.), by Thomas W. Rishel, The Mathematical Association of America,
Washington, DC, 1999.
3. Youre the Professor, What Next?: Ideas
and Resources for Preparing College Teachers, Bettye Anne Case, Editor,
The Mathematical Association of America, Washington, DC, 1994.
4. College Mathematics: Suggestions on How
to Teach It, by the Committee on the Teaching of Undergraduate Mathematics,
The Mathematical Association of America, Washington, DC, 1979
5. Can We Make Mathematics Intelligible?, by
R. P. Boas, The American Mathematical Monthly, Volume 88, Number 10, December
1981
6. The Craft of Teaching (2nd Ed.), by Kenneth
E. Ebling, Jossey-Bass Publishers, San Francisco, CA, 1988.