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As many teachers find in their work, I was
presenting a specific set of lectures annually to my first year electronics
classes. One of the foremost rules that I have in my classes is to
keep the presentation of new information very short and precise.
Many of the concepts presented to the class were often done in multiple
static drawings as I attempted to show the action happening inside the
circuit. I was constantly dredging up references to basic ideas and
relationships to remind the students that what was happening was predictable.
The computers were introduced to the
classroom as new tools. How would my students respond to my static
drawings concepts if they were presented as animations? What a lovely idea.
It worked better than I had expected. Then I developed the "lecture"
material explaining the concepts. HTML was a perfect medium for presenting
my course. It would let me present photographs, graphics and allow me to
present animations and short movies taken with digital cameras.
I started looking on the internet as I
developed my HTML material during the '96 - '97 school year. I wanted to
see what other high school electronics teachers were doing. Through
weeks of surfing, I came to realize that electronics as an elective in
secondary schools was unique to British Columbia. BC was one of
few jurisdictions in North America that had a government mandated curriculum
for the topic. At the time there were about 2000 secondary schools
across the United States that offered at least one class in electronics,
but they did not have consistent curriculum or goals. Many of the classes
were being presented through the science departments as an extension of
physics. Others were nothing more than purchase kits and build projects
blindly, without understanding the concepts behind the work. Compare
that to BC with over 300 secondary schools that offer at least on electronics
course, and we do have a common curriculum.
As I talked further with my colleagues
here in BC, I realized something else. All electronics teachers that
I met fell into 2 categories. One group worked hard to develop curriculum
for their students, but never stabilized their work. The second group
were shop teachers outside of their specialty. They were struggling.
They didn't have the background or resources needed to develop their programs.
I sat down and in 45 minutes wrote out
an outline of what I considered necessary material for a first year "Introduction
to Electronics" for the high school classroom. When I finished it
2 1/2 years later, I compared my work to the newly published (most recent)
curriculum guide. My course met and exceeded the expectations of
the Grade 11 Electronics Curriculum Guide, reaching well into the learning
outcomes for grade 12.
My text stabilizes the course work.
It includes all of the necessary background material for teachers, inquiring
minds, budding & potential geniuses. I visualize that this text
will be seen as the Key Stone, the catalyst that was missing, that necessary
stepping stone to bridge the gap and encourage a real blossoming
of interest in electronics through out the world. The learner doesn't need
prior knowledge. They don't have to be in a classroom to learn.