Feb
22
classroom amplification systems
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Impulsive noise in this season of life in this colorful, serene to any person is a very rare and very extravagant desire, is a long-lost dream. For a really know how to live and enjoy life the people, the quiet is a state, but also a God-given a glass of wine. Once heard a saying: There are two pains in life, one that you want to get things, but you never get; one is you do not want, but had followed. Tie him in the pain of this contradiction, the quiet is a blending party, is the heart medicine, who has mastered this recipe, you will not be because of the loss and sadness, it will not be the surprise. A cup of tea in hand, possession of her truck wind; a network of wonderful world, let him wide sea diving. Can enrich the connotation of a quiet life. Understand and to this state of mind as quiet as fine tea products, and his life is rich. Can support of static and static can be quiet. This is a high level of rich spiritual wealth, whether you do anything, they will first keep a cool head and know that success and loss, but also know the honor and the recession. Is a quiet heart of the open-minded. What is heart heart do things, why hang in mind? Physical stuff is just physical stuff, not

Writing Background:
Feng language teacher, and I teach English. However, there are a lot of us can share things. We often drank tea and talked about teaching education. We tried to model classroom teaching, seminars teaching materials, teachers and students "classes three elements" between, but could not solid grounding in mathematics, eventually had to reluctantly give up. In fact, we later learned, there are three elements of the class already has a complex, not simply by way of modeling, but must be used to describe the complex science.
He talked about his teaching to me, saying that his "water" class. He has been thinking about how to describe him from a literary point of view class, but I was trying to use the theory show that this is an advanced teaching ideas. For the abundance of the teacher's "classroom of water", many teachers can understand, or have the same feelings, even though they know this is difficult to discuss theoretically the reasonableness of the classroom.
Finally have the time, in the "impulse" driven, I am trying to write the following article. And complex systems science from the scientific point of view, I tried to "water in the Classroom" to lay a little theoretical basis.
Would like to support this as a discourse, dedicated to those who maintain vitality in the classroom, teachers are free to create.
Feng teacher is a very good language teachers. In my opinion, his superb teaching, has reached the "water" in the realm. His professional firmer foundation, a broad view of knowledge, classroom interaction with students on the kind nature. In his words, and students in the class he is playing the "Pushing Hands" - Student "push" to the problem, which he "push" to the students, the students in turn "push" to him, and so on, constitute the the "teaching pushing hands." His teaching can be described as "wind and water" or "fill the gap", which was the highest level of classroom teaching.
I think that tai chi may be derived from Taoism, or that Taoism is the theoretical basis of Taijiquan it. For example, the Taijiquan stresses "dealt with gently," or "skillfully deflected the question," people think of "water of all things and not fight" and "Mo strong tackling and winning." Tai Chi movements look smooth writing, continuous, fully embodies the characteristics of the water. Starting from the objective of all claims Tai Chi, "along with others live by has been the stagnation." Tai Chi in the "listen to Jin", which means that only judge each other oncoming force, pursuant to respond accordingly. Imagine, this is not the highest level of the classroom it?
"Water" class is being reckless and as result? There is no scientific basis behind it? In fact, the "water" class has a complex and profound scientific basis. Here, we discuss this "water" the reasonableness of the classroom to explore the ideological basis behind it.
70 years of the 20th century, curriculum areas, "the concept of renewal movement" began, course by the "development paradigm" began to enter the "understanding pattern." Courses are placed in the broader political, economic, and cultural background, the curriculum as a text by a variety of discourse interpretation. As a thought and discourse, a collection of post-modernism post-modernism, deconstructionism and post-structuralism and other philosophical schools. According to post-modern curriculum, the classroom is no longer the death of a closed system, but the evolution of life, an open system, with complexity, uncertainty, conversion and other characteristics.
Is well known that three major elements of classroom teaching: teachers, students and teaching materials. As is traditional classroom-based behavioral psychology, emphasizing the "stimulus - response", will inevitably move towards teachers "mouthpiece" or "Man Tangguan" teaching mode. Ignore this class students as the subject exists, does not allow students to interpret the text, they blocked the interaction between teachers and students. Students in the element "death" to go after the rest of the class will be two elements: teachers and teaching materials - teachers will be teaching intact, "move" to the students, or "store" in the student brain. At the same time, participants are firmly bound to teach the teachers, teachers are not allowed to interpret the text as a subject. In this sense, teachers, and there is no interaction between materials.
The system has two elements, but a balanced system. Three or more interactive elements of the system, it may become open and evolving system, the so-called "three-generation cycle of chaos." "In mathematics, the role of the two elements is a linear function. Linear function in principle can not produce amplification, fluctuation and emergence of the phenomenon. In other words, 'b' can not be students of all things. Here, 'three' to contact the universe at the beginning and the beginning of the evolution of the meaning of all things suddenly leap off the paper. "[url = # _ftn1] 1 [/ url] this is why?
I said, "Dawson one, one two, two three comes all things." Why is the "three" things can students, and "two" can not? It turned out that the complexity of complex systems from the "three" to start. Many Chinese characters are included in the "three" complexity: three for the public, Miki Mori, three days for the grain, etc., these include the "three" words, than "one" to be complex. Two heads are better organized, their intelligence is much more complex than one may be comparable with the wise; sun exposure from three sides to the crystal, the crystal will look crystal clear. Therefore, "three" has determined that the complexity of the universe and the evolution of the growth of all things.
Newton's law solved the problem of the gravitational attraction between two bodies, but did not address the issue of gravity between the three bodies. Nineteenth century, the French mathematician Poincare found that in three-body problem, the equation of the situation is very complex, so that in the given initial conditions, there is no way to predict the time tends to infinity when the object's orbit. Poincare's theory, is widely regarded as the origin of chaos theory. Therefore, "three" is the root of chaos is where the complexity of the system.
What is the complexity of the system? In the "complicated scientific exploration", by Cheng Siwei, the complexity of the system made a very good description. He believes that the complexity of the system mainly as follows: the system wide and close contact of each unit to form networks; system has a multi-level, multi-functional structure; system in the development process can continue to learn and their level of restructuring and the structure and function perfect; the system is open, and the environment are closely connected, and can better adapt to the direction of development; system is dynamic, changing in a continuous development. A complex system, should contain more than three elements. Missing elements of traditional classroom students, there is no complexity of the system, only a simple mechanical system.
In contrast, post-modern classroom is a complex system. Here, not only the interaction between teachers and students, teachers, teaching materials can also be interactive, that is, teachers enjoy teaching space for interpretation, is "a textbook to teach", rather than the traditional classroom "teaching materials."
The interaction between the three elements of teaching, so teaching has the characteristics of living systems. The growth of life need to continue to carry out metabolism, stable access to material and energy from the outside world and the body wastes and excess heat emissions to the outside world must also be carried out according to external stimuli, self-organization, self-adjustment and evolution. "Life is fragile: from the date of birth, open to the existence or life and death in close proximity, can only rely on uninterrupted active recurring restructuring and the support of external supply to avoid or escape from death. It is not a There is indeed a transitional, always need to reinvent itself, once it can no longer be restructuring and reorganization of the outside world once the lost supplies and maintenance, it could not support the .。 its life can only be balanced between the swing and imbalance, both in the collapse of its work. "[url = # _ftn2] 2 [/ url]
According to external stimuli, the system will automatically respond to life. This response is a feedback. As we all know, there are two types of feedback: positive feedback and negative feedback. Dennis M. Adams have pointed out that "positive feedback loop generated out of control growth, and helps to regulate the negative feedback loop is increased, making this system remains in a stable state of flux. In the negative feedback loop , a factor of change is spread around the circle, until this factor back to the initial change in the opposite direction so far. "[url = # _ftn3] 3 [/ url] will produce a positive feedback out of control, which in our lives The most typical phenomenon is too close to the microphone from the speaker produced whistle - voice from the loudspeaker into the microphone, is amplified into the speakers, but also into the microphone from the speaker, and so on, eventually we will hear the horn whistle. At this point, we generally will be the microphone away from speakers, front speakers, or is not correct. Therefore, the positive feedback is not conducive to the development of the system, and negative feedback are like a thermostat, the role of a stable system. Simply put, the system needs is the growth of negative feedback, not positive feedback.
In systems theory, there is a "fluctuation" concept. From nature to human society, all seem to amount actually constant in the random changing, this change is called "fluctuation." Prigogine had a "long-range correlation" concept, which refers to amplification of fluctuations. Fluctuations in the system by one level amplification, can become a decisive force in changing the system, which is the Lorentz proposed the famous "butterfly effect." Butterfly flapping its wings in South America, the amplification conditions, and there could be a storm in Florida. The role of negative feedback is to control fluctuations, changes in the system maintained at a level to warrant an infinite magnification caused by uncontrollable situation.
Fluctuation is the stability of the system deviation from the average state, can undermine the stability of the system after the system to obtain a new stability. Shows fluctuation is a favorable factor for development, which allows the system to the development from disorder to order, from lower order to higher order evolution. In accordance with the synergetic point of view, the system is to develop, there must be a random fluctuation.
Through continuous exchange of matter and energy with the outside world, a far from equilibrium open systems may be through the "fluctuation" mutation, from the chaotic state of disorder into an orderly state. In order to facilitate understanding, I extract from a slightly clumsy description.
.
Teacher: 3X2 =?
Students: do not know.
Teachers (to myself): do not know? How this can be done?
Here is a nonlinear disordered chaotic state. If teachers know what to do blindsided, the whole class system will this stop, disorderly imbalance. At this turning point, the wise teacher will be an inspiration to continue to promote the growth of the system.
Teacher: 1X3 =?
Student: 3
Teacher: 2X3 =?
Student: 6
Teacher: 3X2 =?
Student: 6
Teacher: That's right.
Thus, the imbalance through the disorder, through self-organization of the fluctuation, the system has returned to the classroom orderly equilibrium state, to continue to develop.
Class, such situations may also occur the following:
Teacher: Let This question is used pi to solve it.
Students (curious): teacher, who first invented pi's?
Teacher: Zu.
Student: Who is Zu? Can you talk about it?
Teachers (to himself): This is not the content of today ah!
In this case, the Zu are not teaching content. However, the turning point in this disorder, teachers can dynamically generate the content of teaching, the students talk about Zu love of learning to encourage students to make contributions to science. If so, the teaching of "emotional, values and attitudes," the dimension is not only achieved, but also reflects very well the formation of post-modern classroom.
With the traditional classroom emphasis on "default" of the contrary, complex and nonlinear post-modern classroom has numerous turning point. The turning point in the post-modern classroom with dynamic and generative characteristics. This is the generation of their own teaching purposes, as Dewey said, "no purpose other than in the process, the process is objective." Dewey will be the turning point of the class known as "the Realm of the purpose", meaning picture will continue teaching generation purposes. [Url = # _ftn4] 4 [/ url]
"Self-organizing non-equilibrium systems can be unstable, but they can survive through evolution. As long as the various subsystems process the full fast enough to suppress the fluctuation of the smaller and medium, and the system to maintain homeostasis in the past , and that is enough 。. not really a complex system is stable under: as long as it maintained its structure, it has always been stable. In this way the presence, making the complexity significant increase is possible. With the permanent stability of the structure of the disappearance of evolution become open, become no limit to see the ultimate, not eternal, without end. "[url = # _ftn5] 5 [/ url]
In a self-organized classroom, all the time full of uncertainty. These uncertainties, the performance of the system in respect of the "fluctuation" or "mutation." The role of teachers is far from a mechanical transmission of knowledge, but size up the situation to choose the generation point, to make the classroom to continue to evolve. "No restrictions, see the ultimate, not eternal, without end." This is the kind of teaching ah? The classroom is no "mouthpiece" of the professors, teachers, lesson plans have been abandoned, everything depends on the wisdom and knowledge of teachers.
Another principle of systems theory, is "the whole greater than the sum of the individual." A self-organizing open system, as well as "emerging" features. The so-called "emerging" refers to the interaction of elements within the system, given the system to the new features. Traditional classroom, each element can not be interactive, the system is just the simple sum of the elements. In the post-modern classroom, the interaction of the elements to make the class system of the continuous generation of new problems, and thus a "emerge." After the formation of the modern classroom emphasis is a classroom as ecosystems "emergence" feature.
Here it is necessary to say that the traditional classroom and post-modern political implications in the classroom is different. In the traditional classroom, teachers fully enjoy the "hegemony" has become a dictator. Students can only receive, not rhetorical or challenge, thus losing the subjectivity. The traditional classroom, and in politics is a kind of totalitarianism. In the post-modern classroom, the students were re-established the main break up, there are qualifications and teachers interact with the materials, the classroom also reflects the democratic trend. Bertalanffy familiar with the system of the founder of this. Dealt with organizational theory, he once said, "I think the organization theory can only be given the highest motto is: Do not give any faction of the dictator in order to guide, to enable them to scientific use 'iron discipline' to more effectively conquer the human, but to warn them, the organization of totalitarian monster If swallowed by the individual self to the death penalty must be. "[url = # _ftn6] 6 [/ url] in a closed system, the inevitable dictatorship and slavery. Only in the open, the system was able to develop, life can be liberated. In my opinion, education and class already contains a political significance.
Can be found under the Postmodern Perspective structuralist system has certain characteristics, but it is a flow of structuralism. Elasticity and flexibility of the system, according to self-organization and evolution of the environment. This feature, reminiscent of water. I said: "The highest good is like water which benefits all things without struggle." Sushi in the "painting of water in mind," also said: "Draw Ben turbulent waves, and rocks, twists and turns, Conforming with, do water changes, known as the God of Yi." So It appears that the highest level of classroom instruction form is the form of water.
"Encountered obstacles will create a vortex flow, which is a stable form by the organization, which itself will continue to self-construction." [Url = # _ftn7] 7 [/ url] river is no organization in the order of turbulence, see like a mess. However, when the turbulence encounter obstacles (such as the arch), it will have an organized order - vortex. Complexity is an important principle of thinking is "duality principle", that is, order and disorder co-produced a complex system. In other words, complex systems of order and disorder of unity. As a complex system, "water" class is "turbulence" and "vortex" of unity.
From another point of view, is the nature of water flow. Whether encountered mountain valleys, not change the fate of the sea water after all. Water may vary in form, but only temporary. It serves the whole process will not affect the water's final destination. This means that water has a strong adaptability and mobility. In the "water" class, although the course content may be unlimited, the curriculum may be the formation of diverse, but the course will not change the direction they did. In other words, "water" class also has a strong adaptability and mobility.
Finally, there is little to show. In the context of the new curriculum reform, classroom students will open and build the professional development of teachers in higher demand. A few days ago, experts from the Ministry of Education, Hubei Province, Mr. Shi Shaodian UNESCO chaired a research fellow at the language of the city will be. At the meeting, Mr. Shi said, "Fan Meizhong language teachers is the best thing." This sentence is not an overstatement. The Fan never write lesson planning (lesson planning in his lifetime), classroom use of Socrates "Midwifery", which fully reflects the characteristics of the post-modern classroom.
It was rather dark moon I do not know, I do not know Spring cicada mantis. Teacher, if you seek the highest level of teaching, then started reading it. If the traditional classroom is a kind of slavery, post-modern classroom is a liberation. In the liberation of the classroom, you will have a patch of sky. If you are a roc, then go to "water hammer three thousand miles, Tuan spread upward in the previous ninety miles" it.
1 Wu Tong, Huang Xinrong "complexity: from the" three "talking", "Dialectics of the system", 2005 1 P7-8
2 Edgar Morin "approach: a natural instinct" P212-213
Dennis M. Adams 3 are waiting for "The Limits to Growth - The Club of Rome report on the human predicament" P6-10
4 Zheng Wei "Education pondering" P46
5 Eric Zhanqi "self-organization of the universe" P287-288
6 Bertalanffy, "General System Theory" P49
7 Edgar Morin, "Introduction to complex thinking" P62
Marico
2012/03/08 22:15
schools using amplification have more focused, productive classrooms . systems to clarify and evenly distribute the teacher's voice throughout the classroom.
Poe
2012/03/16 19:48
frontrow | sound systems improve student achievement
Jill
2012/03/17 08:38
classroom voice amplification is revolutionizing k-12 education with growing evidence . yet until now, classroom microphone systems have been based on .
Sophia
2012/03/17 12:13
wireless classroom mic > voice amplification | calypso systems
Cosmo
2012/03/31 09:02
classroom amplification system. our standard classroom audio system consists of two 70v 15watt 1' x 2' ceiling tile replacement speakers.
Nan
2012/04/05 20:30
classroom amplification system
Edwiin
2012/04/05 23:43
lightspeed is the trusted provider in classroom audio technology. sound field classroom audio systems improve student achievement
Gordon
2012/04/12 00:59
lightspeed - the trusted provider in classroom audio technology
Esther
2012/04/12 10:00
the revolabs classroom wireless amplification system allows the teacher to speak in a normal voice and the students will be able to hear every word. superb sound .
Elliot
2012/04/14 01:51
starin - revolabs classroom? wireless amplification system
Emily
2012/04/18 17:20
while a classroom amplification system is not a matter of technology integration or . how can classroom sound amplification systems help overcome the acoustical .
Valerie
2012/04/22 12:30
classroom amplification white paper
Sammysamson
2012/05/11 02:14
the use of nal fm amplification systems for improving classroom communication by hearing-impaired aboriginal & torres strait islander children .
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