| Microscale chemical laboratory based on reducing resource consumption and reduce environment pollution is a kind of chemical experiment method first developed in the early1980s in the United States, which attracted worldwide attention and research in the chemical sector. In the early1990s, the microscale chemical laboratory was to be studied systematically in China and developed rapidly in20years. Microscale chemical laboratory has been recognized as the development trend of the21st century chemical experiment teaching reform by the chemical education. Microscale chemical laboratory has many advantages such as less reagent consumption than conventional experiment, little pollution, low carbon, environmental protection, simple,easy operation, save time, safe and reliable, whose substitutes can be easily found in our daily life etc, which can realize the aim that every student can do the experiment with wider participation and stronger interest.Chemistry course goal requires that students not only acquire knowledge and skills, but also have development and ascend in the process,method, emotion, attitude and values.Nowdays in most regions of China, high school chemistry teaching situation is:Shortages of facilities, time, instrumentation, paying attention to heavy validation rather than exploration, paying attention to teacher demonstration not student participation, one person contempt with a lot of people watching the contempt practice, pay attention to the theory of depreciate process, etc. Students passive learning, big experimental consume and big pollution, independent and cooperative which ignores the development of students’ mental and emotional attitude and values, do not accord with the requirement of the development of students, do not accord with the new standard idea and concept of environmental protection.Students’learning interest and initiative gets severely contusion, the cultivation of the students’ practical ability and innovative spirit and scientific literacy suffered serious obstacles. In this background, we need to change education idea, renewing teaching methods. This topic for routine test and deficiency of traditional teaching methods, according to the requirements of chemistry curriculum standard, the microscale chemical laboratory works as a carrier to carried out case study and teaching practice, to research and summarize the education function microscale chemical laboratory.This topic with "learning by doing" and "inquiry learning theory and based on a class of grade three in junior middle school as research object, and the teaching contents is based on the education curriculum standard duty ninth-grade chemical experiment textbooks, using such research methods as education experiment, questionnaire and interview investigation, observation etc. Starting with the microscale chemical laboratory mutatis mutandis, compare r the routine test in textbook, from combining theory with practice on the plane. In order to reflect he curriculum concept for the microscale chemical laboratory case carrier, each student will be given the opportunity of creating hands-on experiment and explore, develop the experimental teaching and practice research.The exploring experimental of the curriculum concept of the penetration Elaborately designed can cultivate students’ interest and exploring spirit; Each student has a miniature instruments and all of them can do experiment, experience the chance to explore process. Students change from seeing experiment passively, retelling experiment to do experiment and design experiment by themselves.This subject curriculum concept to penetrate the microscale chemical laboratory case study and its practice, research shows that the microscale chemical laboratory in the implementation of the new curriculum has its unique advantages and remarkable teaching effect. The microscale chemical laboratory show that interest are strong, easy to operate, safe and reliable, the effect is better, more students with stronger and more sustained interest participate in it, clearly enhance students’desire of explore. Realize the aim that everyone can involve experiment, writes in class, students learn while doing experiments can begin to do more experiment, save time, improve teaching efficiency; vivid experimental phenomenon is helpful for the development of thinking in images, make the students engage thinking leftright brain, abstract thinking and the thinking in image coordinate development, cultivate newcomer with rich creation ability, fully exploit the special role chemistry education which can not be replaced by other subjects in the implementing quality education for students. This teaching method change student’s study way, and has changed the traditional force-feeding teaching mode completely, students have more opportunities, more actively involved in laboratory activity, Help students to experience the process of scientific inquiry, form a scientific attitude, training the scientific method, which can more effectively develop the students’ ability of observation, thinking ability, experiment ability, design ability, the inquisition ability and practice ability and innovation spirit and consciousness and ability of lifelong learning, Pushing the reform of chemistry teaching method which is based on "take the student as the main body, with the teacher as the supervisor";To cultivate students’ communication ability, accurately express his views ability, team work spirit, competitive awareness and multi-angle comprehensive ability to solve the problem; The microscale chemical laboratory save experimental supplies, greatly reducing the routine test producing "three wastes" pollution, protect more can train students’ physical health, environmental protection and resource, green chemistry, low carbon, recycling consciousness and social responsibility. Penetration of curriculum concept, the norms of scientific and feasible, novel micro chemistry experiment, is the effective and important ways to improve the teaching effect, the implementation of quality education, promote the students’ scientific literacy development, realize the chemistry curriculum goal.The applying micro chemistry experimental implementation has the vital significance tocultivate students’ scientific literacy and promote chemistry teaching reform.This topic is concerning the cases design on the microscale chemical laboratory and its practice. The study shows that such approach has a great effect on applying the new curriculum.1. In the democratic, free, and hamonious study condition, Microscale Chemical Laboratory Teaching (MCLT) is carried out in the way of "exploring microscale chemical laboratory". With the teaching method like "testing first, learning next", not only the students are stimulated both in study and exploring, but also the teaching effect doubled.2. MCLT is able to lead students to relate the theory to practice.Students are trained to use the knowledge in practice, try it out boldly, and participate in the class voluntarily. Students can also become more capable in solving practical problems.3. With the MCLT, students can alter their study method. On the other hand, teachers can change their traditional infusion teaching method. Students will have more opportunities to take part in the experiment, which is beneficial for students to experience the science exploration process. Students can build their own science attitude, science methods. Such teaching method can also develop students’abilities of observing, thinking,experimenting, designing, exploring, practicing,and creating. They will be more communicative, expressive, cooperative, competitive and solving problems dimensionally.4. Because of MCLT, we save a lot of experimenting instruments. The approach is environmentally friendly, both reducing the pollution caused by chemical experiment and training students to protect their own health, their environment, recyle the resources and be resposible for the society.Students may set up the concept of green chemistry and low-carbon chemistry.MCLT is infutrated with the new curriculum, scientific, instructive, creative, and environmentally friendly. It achieves the goal of chemistry class, improve the teaching effect, advance the development of the students’scientific literacy. The approach is even an important and effective way of applying quality teaching concept. Compared with the regular chemical laboratory, MCL is distinguish and revolutionary.This topic have designed a lot of case of micro chemistry experiment of the middle school, the micro chemistry experimental has outstanding advantages, and penetrate new course standard idea, have certain representativeness, maneuverability and popularize value. Due to the small selected research object, short research time and other reasons, this research with many defects, this domain exploration awaiting further perfecting and research.Researches on global changing, eco-protection, resources-recycling, sustainable development of society are processing endlessly. People, students included, attach more and more importance to the awareness. As a chemistry teacher, I feel much responsible for the revolution of chemistry teaching. I will apply the Microscale Chemical Laboratory Teaching to regular teaching, to explore more improved patterns, approaches and methods. |
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