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Wysłany: Pią 10:31, 07 Sty 2011
Temat postu: Chemistry Teaching the scientific method of educat
Chemistry education in the scientific method
Seeking truth from facts of the Annals of degree 3 broaden the use of chemical historical knowledge of the scientific method of teaching through classroom education, scientific education is often subject to penetration of teaching materials, teaching efficiency and other conditions, most cases involve only logical way, for intuition, inspiration,
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, imagination, speculation, beliefs, colors and other non-logical but creative thinking is difficult to involve, and chemical history there are many cases in this area we passed in class to supplement the teaching of history interspersed with appropriate cases,
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, to students of chemical history of open seminars, its population students on the content of reading materials, etc., so that they be inspired, inspire and influence. Imagine the human mind the most active, most active and creative elements to create the wings of imagination is the science of Chemistry by Hamilton under the actual,
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, full of imagination proposed the formation of the atomic theory. Mendeleev and Kekule's imagination led to the creation of SUI Periodic Law and the discovery of molecular structure of benzene. History shows that scientific discovery, opportunity in the new discovery has an important role, researchers should take advantage of this. Do not miss the chance, but \Rubber is very troublesome shortcomings painstakingly discovered the vulcanization of rubber; age of eighteen years of age in Taiwan as quinine Park piano bold experiment, we found the small aniline dye, thus becoming a pioneer in artificial units into the dye, in which opportunities are played an important role. similar to the inverted promoter in the history of many chemicals. Lavoisier established the concept of oxygen, to overthrow the centuries-old rule of chemistry error \The discovery process is to promote learning attitude so courage to challenge, develop critical thinking skills of typical materials. shows that the scientific method using chemical historical broaden the content of education, not only helps students understand the process of scientific exploration chemist hard, fork of students of the scientific method and scientific attitude of great benefit. imprison Shanghai Education 20o0 save two to three years, cutting down the first five three-4. through the scientific method problem solving method of training is a kind of sense, \applications of training. to firmly grasp and accurately use freely to do the exercises in chemistry teaching is to consolidate knowledge and improve the ability of a skilled method of teaching ways. For example: Problem 1: Zhuang empty aluminum cans filled with a CO later. quickly pour the right amount of NaOH solution. Li Lang sealed the mouth,
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, soon found cans become flat, after a period of time. fork drum up, its cause? solution to this problem can not only stimulate student interest in learning, and students can be activated at the image thinking. in the solution question students during the practice careful Chun Zhai chain and Law: Problem 2: It is known to occur following anti Brcl straight lM metal l, nBrCl +2 M = MC1 + MBBrCI + H: 0 = HBrO + HCI, the following is correct judgments () ABI ~ I and CI, Br2_ B.BrC1 have similar chemical properties at room temperature for the volatile liquid, F. C room temperature BrCI reaction with NaOH solution of NaCI and aBrOD.BrCI oxidation stronger than cl. This is a information problem solving this issue to the topic and information on Lenovo halogen single quality SUI quality, by analogy analysis,
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, through which students thinking of migration and creativity Problem 3: Verify the copper with concentrated nitric acid reaction mixture containing NO. to correct Solutions to this problem. to overcome the following two thoughts, to eliminate error risks. The first consideration is not a salt, oxide NO. Walter NaOH intended to open first to remove NO:, will be the reaction of NO + NO +2 NaOH ~ 2NaNO2 + H0 and consumption of NO, an error; second is to use the first cooling liquid NO: practice, then the water is liquefied .3 N + H20-2HNO] + NO, generated NO, and generate an error. This question must first remove the water and then Chen NO. to prove the existence by NO solution to this problem, you can examine the ability to train students in the experimental design, quality of students the scientific Siwei Suo, both divergent thinking, critical thinking fork with problem solving training is a high school chemistry education important part of teaching, mainly students of logical thinking ability, so that they achieve through the use of a variety of solution to solve chemical problems learn and master the scientific method commonly used to improve the students to analyze and solve the Arab question asked condemnation ability. the scientific method is scientific literacy an important part of the structure, quality education for the 2l century. cultivate creative talents in science education a higher quality requirements, and how effectively the students the scientific method, etc., including the scientific quality education, yet we continue to exploration. l administrative responsibilities matched them Yongcheng J Series
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