|
The Future of Engineering Education: Part 2. Teaching Methods that
Work, by R. M. Felder, D. R. Woods, J. E. Stice, and A. Rugarcia,
Chemical Engineering Education, Winter 2000, pp. 26-39. (The
paper in its entirety is available on the Internet at http://www2.ncsu.edu/effective_teaching/)
[79 references]
Summarized by J. T. P. Yao, 6/30/00
"
Engineering schools and professors have been told by countless
panels and blue-ribbon commissions
that we must strengthen
our coverage of fundamentals; teach more about 'real-world' engineering
design and operations, including quality management; cover more
material in frontier areas of engineering; offer more and better
instruction in both oral and written communication skills and teamwork
skills; provide training in critical and creative thinking skills
and problem-solving methods; produce graduates who are conversant
with engineering ethics and the connections between technology and
society; and reduce the number of hours in the engineering curriculum
so that the average student can complete it in four years."
"The reality is that better teaching methods exist.
The
instructional methods to be described have been chosen to meet the
following criteria:
- The are relevant to engineering education.
- They can be implemented within the context of the ordinary engineering
classroom.
- Most engineering professors should feel reasonably comfortable
with them after a little practice.
- They are consistent with modern theories of learning and have
been tried and found effective by many educators.
"
"Formulate and Publish Clear Instructional Objectives
Instructional objectives are statements of what students should
be able to do to demonstrate their mastery of course material and
desired skills.
The behavior specified in an instructional
objective must be directly observable by the instructor and should
be as specific and unambiguous as possible.
Instructional
objectives may involve skills that cover a broad spectrum of complexity
and difficulty.
Make the objectives as detailed and specific
as possible: rather than simply saying that the student should be
able to 'design a chemical plant,' list all the different things
the student will be expected to do (look up, estimate, calculate,
create, analyze, select, explain) when designing the plant. Make
class exercises, homework assignments, and tests consistent with
the objectives. Give the objectives to the students to use as study
guides.
Once formulated, instructional objectives reveal
which course topics are most important and deserve the greatest
coverage, and which involve little else than memorization and thus
merit only cursory attention or possible elimination from the curriculum.
"
"Establish Relevance of Course Material and Teach Inductively
Begin teaching each course and each new topic within it
by describing the physical and chemical phenomena to be studied
and the types of problems to be solved, using examples familiar
to the students if possible.
A good way to begin is to divide
the class into groups of three or four and have the groups generate
as many examples as they can think of in a brief period of time,
adding your own to supplement whatever they come up with.
Give them the allotted time
, then stop them and collect the
ideas, listing them without criticism.
The flow of information
in the presentation of course material should generally follow that
of the scientific method: begin with induction, proceeding by inference
from specifics (facts, observations, data) to generalities (rules,
theories, co-relations, mathematical modals), and then switch to
deduction, using the rules and models to generate additional specifics
(consequences, applications, predictions).
"
"Balance Concrete and Abstract Information in Every Course
Balance concrete and abstract content in the presentation
of all engineering courses.
Some suggestions for doing so
follow:
- Do everything listed under the category of establishing relevance
in the preceding section.
- Intersperse concrete illustrations and applications throughout
theoretical developments rather than waiting until the final formulas
have been derived.
- When illustrating how formulas and algorithms are applied, use
numbers rather than algebraic variables in at least the first
example.
- Provide visual illustrations and demonstrations of course-related
material when possible.
- Never venture too far from the realm of experimentation.
One way to help students gain a deeper understanding of course
material is to ask questions that require such an understanding,
first in class problems and homework and then on tests.
"
"Promote Active Learning in the Classroom
Several times during each lecture period, ask the students
to form into groups of 2 to 4 and give them brief exercises that
last anywhere from 30 seconds to 3 minutes.
For example,
- Outline a strategy for solving the problem just posed.
- Draw a flowchart (schematic) for the process just described.
- Think of as many practical applications as you can of this (system,
device, formula).
- Get started on the solution of the problem and see how far you
can get with it in two minutes.
- What is the next step in the derivation?
- Complete this calculation.
- Prove or verify this result.
- Suppose you carry out experimental measurements and the results
fail to agree with the theoretical formula we just derived. Think
of as many possible explanations as you can.
- What questions do you have about this material?
Active learning methods make classes much more enjoyable
for both students and instructors.
"
"Use Cooperative Learning
Cooperative learning (CL) is an instructional approach in which
students work in teams on learning task structures to have the following
features:
- Positive independence.
- Individual accountability.
- Face-to-face promotive interaction.
- Appropriate use of interpersonal and teamwork skills.
- Regular self-assessment of team functioning.
Recommendation
Explain to students what you are doing and why
Assign some or all homework to teams of 3-4 students
Form the groups yourself
Form teams that are heterogeneous in ability level
Assign team roles that rotate with each assignment
Promote positive interdependence
Get teams to assess how well they are functioning
Consider doing some testing of pairs or groups
Do not re-form groups too often
Provide an escape mechanism for teams having severe difficulties
Do not assign course grades on a curve
Start small and build
"
"Give Challenging but Fair Tests
- Give the students instructional objectives for each test in
the form of a study guide.
- When writing the test, consult the instructional objectives
and make sure that 10-15% of the test covers the more challenging
material in the study guide
- Always work a test out yourself from scratch when you have finish
writing it, timing how long it takes to do it.
- Minimize speed as a factor in performance on tests.
- Do not test skills that students have not had a chance to practice.
- Even if you curve grades, if the average is in the 50-60 range
or below, consider the possibility that it was a poor test or
that you did a poor job of preparing the students for it.
"
"Convey a Sense of Concern About the Students' Learning
- Learn the students' names.
- Make yourself available.
- If you use nontraditional methods such as cooperative learning,
explain how what your doing has been shown to lead to improved
learning and/or improved preparation for the careers.
- Celebrate the students' achievements.
- Collect periodic feedback and respond appropriately to it.
- Let students participate in learning and performance assessment.
- Maintain a sense of respect for the students, individually and
collectively.
"
[Readers who are interested in this article are encouraged to
read the original paper in its entirety. Other summary notes on
faculty reward systems are available on the Internet at http://lohman.tamu.edu
under the heading "Summaries of Papers ..."]
Return to
the Lohman homepage |