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int from which to start Fruit Battery by analogy fruit battery and test the similarities and differences of the original battery so that students in a relaxed environment entertaining grasp the basic principles of the original battery .

Speaking skills in front of the more basic skills, and these skills are higher than the level of skill is a comprehensive strategic chemistry teaching skills , it is manifested in the teaching process can be more accurate and rational use of heavier other teaching skills , so as to achieve the purpose of teaching in favor of this teaching method are better able to cultivate students' comprehensive quality . This teaching skills are very important, but there is the most neglected .

In the chemical structure and properties of matter is more complex, which makes the chemistry classroom teachers will be some unexpected accident . So every teacher in class should always be ready to deal with the teaching process could happen unexpected accident . It seems to me to deal with these unexpected accident is both a challenge and an opportunity . This is because these unexpected accident but it is still there a little bit of necessity , if we can properly deal with these unexpected accident then for students to understand the teaching emphasis and difficulty of great help . For example: a teacher in the classroom in terms of road : Sodium burning in air , a yellow flame , and then do the demonstration, because the negligence of the sodium surface is not clean kerosene , will begin sodium lit a thick smoke smoke , the students stunned . Teachers continue to observe quietly please experimental phenomena , and then asked : Why smoke color will become ? Students from the shock becomes active immediately , on this one issue to discuss , explore . Accident because the experiments so that students actually the physical properties of sodium awareness and preservation measures have been further deepened , and has been the influence of scientific ideas and methods .
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