Tom Hayes от Harvard University води интересен курс по аналогова и цифрова електроника Physics 123. Той е автор на Student Manual for the Art of Electronics - частта за студенти от бестселъра The Art of Electronics ("Искусство схемотехники" в превод на руски). Tom беше любезен да каже няколко поощрителни думи за нашето начинание >>>.

Tony Kuphaldt (Bellingham Technical College, Washington) е автор на знаменития интернет курс Lessons In Electric Circuits и на големия и амбициозен проект Socratic electronics, който често ще използваме в нашите занятия. Tony също коментира положително идеята на пострителния подход, която реализираме с вас в момента >>>.

As both a student and as a teacher, I have learned that one of the most important skills to acquire in school is the ability to think independently and creatively.  It is not enough to simply follow someone else's instructions, or to mimic the work of others.  Many challenges we face in life -- technical and otherwise -- can only be overcome if we approach them with courage and with creativity.

The best teachers are those who inspire and challenge their students to think on their own.  The best education is one where students emerge fully equipped as problem-solvers and as leaders.  How do teachers best inspire their students to reach these goals?  How does education become something more than a mere transmission of facts, into institutions where students are liberated to develop into their full potential as human beings?

I believe this is possible only where teachers respect and regard students as thinkers.  In my classroom, I expect my students to apply their natural abilities to learning new information, and to solving new problems.  My job is to sharpen those natural abilities, to act as a coach, as a mentor, and as a friend.  Following the same philosophy, I refuse to simply "spoon-feed" information to my students, treating them as children and reinforcing the notion that they cannot think for themselves.

Asking good questions is one of the best ways to stimulate intelligent thought in the classroom.  Creating a vibrant dialogue between students and their instructor not only inspires deeper thinking, but it builds confidence in students that they can think on their own, and that their thoughts matter.  Another way to stimulate students' intellectual growth is to have them apply their natural creativity to designing new things.  The thrill of creating something new adds a dimension of excitement to learning, and builds student confidence even further.

It does not matter what subject is being taught.  Critical, creative thinking is the same no matter what topic students may be studying.  This is good, because it means teachers of any subject can make an incredible difference in the intellectual development of their students that will benefit them throughout their lives.  It is possible for all teachers to help their students become independent and creative thinkers, but unfortunately not all teachers do so.

Cyril's approach to teaching electronics honors these principles.  Rather than simply telling his students how all the different kinds of circuits work, he teaches them "building blocks," which his students may then use to create new and interesting circuits for a wide variety of applications.  Teaching in this manner builds precisely the kind of creative, problem-solving attitude needed in life to overcome complex problems, whether they be related to electronics or not.  Students would be wise to invest themselves deeply in this type of learning, and seek to apply their new-found skills to other areas of study.

Cyril, I wish you the very best in your endeavor.  Keep up the good work!

- Tony

А сега искам да ви запозная с един млад американец от Ню Йорк - Charles Perard. Неговата история е много показателна и поучителна за нас. Той ви е почти връстник и ви е бил колега в престижен университет, но впоследствие е отпаднал от "класирането". Защо, ще разберете от тези няколко писма >>>.

Аз поканих Charles да вземе участие в нашите "построителни" семинарни занятия в интернет и той се отзова възторжено. Charles даже ни изпраща откъси от автобиографията, в които описва "перипетиите" си в образованието. Аз останах поразен, защото имах чувството, че чета собственото си "био", което сложих преди 2 години на този сайт. Ето, вижте и сравнете сами ...

 

... then went on to study engineering at a prestigious university. Despite the prestige of this school, understanding was not necessarily thought. Unfortunately, this is a common problem in education. Students are often thought formulas and ideas and are then expected to regurgitate them back to teachers or professors. Rutgers University has researched and documented a variety of these cases. Morris Kline was a professor emeritus at NYU and has written several books documenting this problem in mathematical education.

 

... As far back as I can remember -- as a pupil, an undergraduate and a beginning teacher -- I was trying with no success to penetrate into popular electronic circuit operation using classical textbooks on electronics. With time I have reached the conclusion that formal methods do not explain circuits. The mathematical models they use cannot reveal the basic ideas circuits are grounded on: these models hide structure, causality and structure-function relations. Formal methods may even lead us to absurdity analyzing something, not really knowing what it is like ...

I have never wanted to think in a formal way: I am a human being, not a computer. In order to grasp how abstract electronic circuits work, I try to discern familiar simpler devices in complicated mixtures of electronic devices and well-known ideas and principles drawn from our everyday experience. I believe electronic devices, no matter how complicated, are based on clear and simple basic concepts. To reveal them, I have to find out how these devices were invented.
I replace real transistors and op-amps with "manual" ones and begin performing their functions (these are my students' favorite experiments in the laboratory). Thus I get a taste of what the device "feels" and a picture of its behavior revealing cause and effect relations in its operation. I do that mostly using my imagination rather than my reasoning, visualizing in my mind's eye how potentials rise/drop, currents flow from high to low potential point, resistors "shorten" and "lengthen", etc...

 

I wanted to understand circuits and began to study independently. It is then I found Cyril's website and was amazed by his focus on understanding and developing circuits by building blocks. My independent study on education and learning helped me to realize the significance in his approach. The visual aids are key because, one can then see how decreasing resistance, increases current. This very statement can be confusing but with visual aide it is a clear concept. Also, Cyril's circuit workbench allows students to see the effects on a circuit by changing components in the same circuit. You can see how changing a resistor to an inductor affects the current or voltage in a circuit. This will help you to better understand why circuit designers place one component over another. His very language on the subject promotes true understanding.

 

I am a firm believer in Cyril's methods. If you are interested in learning circuits, in understanding, then look no further.

 

 

 

А сега да разгледаме един по-практически курс по аналогова електроника - Basic Car Audio Electronics на Perry Babin. В него са показани много приложения на аналоговите схеми в автомобилната аудиоелектроника. Ето какво е мнението на Perry за нашето начинание >>>.

Ето и един задълбочен курс по основи на електрониката, включващ доста теоретични сведения за схемите. Автор му е Gert van den Heuvel от Холандия, който също е имал проблеми, нека да видим какви >>>.

Your approach is certainly less formal than mine! ;-)

Let me first explain how I came to writing the course. I love electronics since I was a little kid. I built circuits printed in magazines and such, but I didn't really understand what I was doing. Study books were either too expensive, too difficult, or both. Years after having studied electronics, I discovered in news groups that people were having the same problems I had when I was young. So I decided to write an electronics couse that should be simple and fun. It should be informative to the beginner and the more experienced student. This means that more in-depth discussions (like: what does the inside of a diode look like?) are available in intermezzos. To make to course availble to as many people as possible, I decided to write it in English, although it isn't my native language (it's Dutch). And yes, writing a course in a great challenge. And I'm not even a teacher, so I have to write the course in my free time. But it's worth it. From time to time I get nice e-mails from 'students' following the course. And I know of 2 people who are using the course to teach electronics to groups of children.

It is nice to see that someone else is also writing a course starting with the very basics, but with a different approach. I really think we can fill each other in. Please feel free to link to my course where ever you feel appropriate. I'll add a link to your first two classes at the end of my 2nd lesson (about current and resistors). I'll add more as you put your lessons on-line.

Kind regards, Gert van den Heuvel
webmaster www.HobbyElectronics.info

Колега Светиев,

Благодаря ви отново за ценната обратна връзка, която ми позволява да подобрявам съдържанието и изпълнението на сайта....

Тук очаквам да получа обратна връзка от колегите си в Техническия университет ...

Електротехника, Измервателна техника, Полупроводникови прибори, Специализирана компютърна електроника, Цифрова схемотехника, Измервания в електрониката, Токозахранващи устройства ......
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