Positives of the Lecture Method
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Lecture can communicate
intrinsic interest in a subject. The lectures can give the information an
enthusiasm that no book or other media can do.
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A lecturer can be a role
model of a scholar in action. The lecturer’s way of looking at information or
problem solving can be a great model for students to emulate.
-
Lectures can communication
information that is otherwise unavailable including original research or
industry experience. Lectures can provide needed background information that
is not available otherwise to the student. It can set a context for the
information to be learned.
-
Lectures can organize
information in more efficient ways making the information simpler or clearer
for the students. This is often the most important reason to lecture—focus the
students on the important information.
-
Lecture is face-to-face
which usually is better than books or video alone.
-
Lectures allow for the
communication of large amounts of information to large audiences.
-
Lectures emphasize learning
by listening which can be good for students who like to learn in this way.
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Lecture allows the teacher
to control the learning environment and set the agenda, pace etc.
Lecturing Weaknesses
-
It can be a very passive
form of learning. It allows for students to hideout and to attend class
unprepared.
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It encourages one-way
communication. Feedback on student learning is not readily available.
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Lecturers need to be
effective speakers. Normal academic training does not address this area of
skill development.
-
Places the main burden for
organization and synthesis of the material on the instructor. Lecture is not
well suited to higher levels of learning like application or analysis.
-
Lectures assume all students
are learning at the same rate and at the same level which we know is not so.
-
Lecture makes it very
difficult to sustain students’ attention.
-
Lectures tend to be
forgotten quickly. Learners form more neuro-connections when they are actively
involved and using more than one of their sensory pathways.
-
Lectures often convey
information that can be more efficiently obtained in other ways (text,
assigned readings, audiovisual). Students see it as wasting their time.
-
Lectures often repeat
material covered in the text or in assigned readings.
-
Students often do not hear
what the instructor believes he/she said
a. Check a few students’ notebooks and compare their notes to each other
and to your lecture notes--distortion and omission are common.
-
Is not a learner-centered
way to teach. It requires a great deal of unguided student time outside the
classroom to achieve understanding and long-term retention of the content.
The
Lecture Process
-
Determine the learning
objectives for the lecture—what will the students learn as a result of this
lecture.
-
Share a lecture outline or
the learning objectives with the students at the beginning of the lecture and
keep it visually available during the entire class.
-
Make certain that your
lecture notes are easily accessible and well organized. Try to be as
extemporaneous as possible.
-
Always check students’
background knowledge of the lecture topic. Previous knowledge is necessary for
new knowledge to be learned. This is a big part of being learner centered.
-
Determine what level of
understanding of the topic the students need. Don’t go into great detail
unless you want them to understand the material at that level. Giving too much
material makes for little or no time for understanding
-
Facts should be secondary to
the concepts and problem solving abilities that are key to the course.
-
Ask the question “What
concepts need to be taught” not “what concepts do the students need to know.”
If students can easily get the information from other sources, then lecturing
on it is not an effective use of class time.
- Ask what is reasonable to explain in 50 minutes? No more than 4-5 key
points or ideas.
-
Decide on an appropriate
instructional strategy for your student population. Can your students handle
lecture effectively?
a.
Underlying principal
b.
Use of visual aids
c.
Demonstration
d.
Question/Answer
e.
Handouts with Student Activity
-
Decide in advance how you
will handle students’ questions. Take them as they come up or set a time (at
the end of each 15 minutes of lecture) for questions.
-
Instruct the students to do
something with the lecture information that will enhance their understanding
and retention of the information.
Example—
a.
Prepare to make predictions about what
will come next.
b.
Summarize your notes/most important points
of the lecture in three sentences.
c.
Draw a cognitive map from your notes
-
Evaluate your performance
soon after the lecture and make test questions from the lecture material the
same day you give it.
Using Visual Aids in Lectures
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They should attract and hold
the students’ attention.
-
They should aid the
organization, illustration and clarification of the lecture.
-
They should encourage active
thought—but not distraction.
-
They should increase the
effectiveness and efficiency of the presentation.
When Using Visual Aids Don’t…
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Don’t talk to your slides.
All the audience will know about you is the back of your head.
-
Let the slides speak for
themselves. Don’t read the slides word-for-word. It will bore the students and
is redundant.
-
Pause after highlighting
points on a slide. Give students time to absorb the information.
-
Remember you are the central
force behind your lecture not your slides.
Pace and Delivery of a Lecture
If you are new at giving
lectures practice to gauge the time it takes to deliver the lecture. Keep in
mind the time you may spend stopping for questions and clarifications.
Give the lecture to a friend
or colleague and have them critique it for pace. When nervous we tend to speed
up. When too cautious we creep along repeating ourselves often.
Time your lecture to make
certain it does not exceed 95% of the class time period.
Project your voice and use
your facial expression and body gestures to help emphasize the key points in the
lecture.
Make certain the support
equipment you intend to use is set up and working. Don’t spend 5 minutes trying
to get a screen to stay down.
Attention Span and Lecturing
1.
Studies indicate the average adult attention span is 15-20 minutes. (Vincent
Ruggerio 1996)
-
First five minutes are the
best
-
The next 2- five-minute
periods are good
-
The worst time occurs
after about 20 minutes
-
Even when refocused the
attention span often becomes shorter as time passes.
Reasons
for short attention span?
-
Recent research at the
National Institute of Mental Health conducted by Peter Jensen concluded,
"Extensive exposure to television and video games may promote development of
brain systems that scan and shift attention at the expense of those that focus
attention."
-
Secondly, the earlier
children acquire a passive TV habit, the more likely attention span will not
develop normally.
-
Since the images change
rapidly so does the shift of the child's attention.
-
Contrast this externalized
control of attention with the internal control required while participating in
a self-directed play activity. The child, not a scriptwriter or producer,
determines how long he or she will attend to individual tasks.
-
Cognitive science tells us
we automatically take time to reduce information down into chunks (categories)
that can be attached to our background. Students will do this as a normal part
of learning during a lecture even when they are interested and want to learn
and listen.
-
Our expectation is to be
entertained.
References
Andrews, P. H. ( 1985). Basic Public
Speaking. New York: Harper and Row
Baird, J.E. (1974). The Effects of
"Previews" and "Reviews" upon Audience Comprehension of Expository Speeches of
Varying Quality and Complexity. Central States Speech Journal. 25, 119127.
Beatty, M.J. (1988). Situational and
Predispositional Correlates of Public Speaking Anxiety. Communication Education.
37, 28-39.
Frederick, P.J. (1986). The Lively
Lecture-8 Variations. College Teaching. 34, 43-50.
Knapp, M.L. (1976). Communicating with
Students. Improving College and University Teaching. 24, 167-168.
Lucas, S. E. ( 1983). The Art of Public
Speaking. New York: Random House.
McKeachie, W.J. (1980). Improving Lectures
by Understanding Students' Information Processing. In New Directions for
Teaching and Learning: Learning, Cognition, and College Teaching, edited by
Wilbert J. McKeachie. San Francisco: Jossey-Bass, pp. 25-35.
Weaver, R.L. (1982). Effective Lecturing
Techniques: Alternatives to Classroom Boredom. New Directions in Teaching. 7,
31-39. |