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To carry out chemical experiments using live subjects design activities


Understanding and attention. 4. Medicines, equipment demonstration area to life as a theme to carry out the chemical activities of experimental design, the experiment is best done outside of class, which requires experimental drugs, devices can be found in everyday life, or to have alternatives. If drugs or equipment not readily available, activities for students to engage in experimental design will produce physical barriers, the students would be reluctant to accept. On the contrary, as previously mentioned items used in the experimental design; Again, to do with egg shells and strong acetic acid than carbonic acid experiments, thermos liner with acetic acid to remove dirt experiment, test and other experiments alum water supplies are easy to get, so they could complete at home. This technology: the sheep experiment students design activities can easily be accepted and will achieve better results. Second, the use of living subjects to carry out chemical activities, the implementation of experimental design to life as a theme to carry out the chemical activities of the key is to organize the experimental design, organizations generally need to seize the three links. 1. Selected topics by the above experimental feasibility analysis, preferably in the subject matter often happens in daily life or are more familiar with the chemical problems, and drugs and equipment (or substitutes) easily available. Of course, not necessarily full of substitutes, individual drugs can be provided by the school. For example, the salt is iodized? This is the use of salt in the KIO. Ⅺ and acid reaction with the principle of the experiment, acetic acid can be used instead of hydrochloric acid, and then give each student a Ⅺ a starch test paper, the experimental conditions completely equipped. Experimental design and teaching the best combination of subjects, completion of a chapter, choose to do one or two relevant to the content and teaching life issues as the design theme. For example, the first high school chemistry book chapter selection Chapter election 2. Meticulous planning of experimental design in order to obtain experimental design success, teachers must carefully consider their purpose the implementation of this experimental design, requirements, situations may arise, and how to prevent bias and other issues. Experimental design before the implementation of the experimental platform, the teacher should first organize the students to discuss, to enable students to better their own experimental programs that are proposed, and to demonstrate more. Only grasp the situation, the deployment will be careful, to be foolproof. 3. Conscientiously implement the experimental design written lab report is a good form of implementation, requires students to the basic experiments in accordance with the usual form of a report written intent of the experiment,ed hardy uk, laboratory supplies, test steps (write operation sequence, the amount of reagent and observed phenomena) , experimental results. By examining the test reports can understand the students participation, attitudes, and effects to enable them to better grasp the basic skills of chemistry experiments,tory burch outlet, experiments to improve the basic quality, and develop their observation of the phenomenon, analyze and solve problems. Third, to strengthen the conduct of life the theme of chemistry experiments designed to guide the activities of an activity is not easy to carry out good, need to have a serious attitude and spirit throughout the work, especially teachers in activities to strengthen the following aspects of the guidance. 1. The purpose of the event, meaning that the education to carry out experimental design activities, while students have a high enthusiasm and interest, but they were this not enough, because the chemical experimental design is scientific, practical and creative, there must be rigorous scientific attitude, so there is a need to promote motivation to learn with the right motivation, enthusiasm for learning will be more durable. 2. Safety education activities to pay attention to safety, especially those with a dangerous experimental design, must take the possible scenarios is estimated to analyze detailed account of the Qing, the risk is relatively large experiment is avoided. 3. Encourage students to experiment on a theme of innovation and the experimental design should not require uniformity, you can open and thinking, brainstorming, can put forward different views should be encouraged, should they meet the scientific recognition. Implementation of the program should be optimal, but not necessarily only one. 4, timely recognition of advanced activities of the attitude of serious, active participation, students who want to record a full recognition, in order to protect their enthusiasm. Through the selection and experimental reports show excellent way to make students a sense of achievement. These are the theme of life for carrying out chemical experiments to understand and experience design activities. My own activities, although at the trial stage, but has achieved recognition and support of students received some results. I firmly believe that as long as the stick, and the quality of students' scientific literacy test will be of significant improvement. (Dongyang City,######## oakley sunglasses, Zhejiang Province,radii shoes sale, Dongyang School 3221oo)
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