In the morning, the primary and secondary schools respectively summarized the issue of the topic. The middle school group believes that each research group has used a large number of media and combined research with education and teaching to conduct research on the subject and achieved some results. The primary school group believes that after the project was established, the primary school groups have made careful arrangements. The school leaders also attach great importance to this work, and each research group has formed its own research characteristics. The Jishi Attached Xiaozi Research Group, the Yongfeng County Enjiang Primary School Task Force, and the Jiyang District Yangming Road Primary School Task Team have all set up the project on the research group and the Youth League Branch, with the academic leaders as the backbone and the school group branch as the leader. The teachers and students of the whole school participate in the research of the subject. Experts from the Central Institute of Education believe that this method is the first in the country. The expert review team finally concluded that all the sub-projects of the fifteen-level planning project Ji'an were identified through the completion of the project.
Deputy Director Yao Huayu of Ji'an Municipal Education Bureau said in his concluding remarks that the completion of the ceremony will be very successful. First, it reflects two major characteristics: serious and effective. The comrades attending the meeting were prepared to be serious; the level of experts was high, the work was serious, and the role model was set; the teachers who reported the report were also very serious. Through the efforts of everyone, the conclusions will have obvious results. Experts commented on the finishing touch, and the comments on the classroom were clear at a glance, pointing out the problem and clarifying the direction. The second is to deepen understanding and establish friendship. Third, it will further promote the use of a variety of teaching media in education and teaching, so that children can be trained in innovation, hands-on ability and practice.
Correspondent Deng Dongchang Wen Zhaohui Chen Lihua Spring balance is an instrument used to measure force in physics teaching. The old spring balances produced before the last century, the scale of which is mostly in grams, but also in units of units. It is inconsistent with the international system of units used in the current middle school physics textbooks, as shown in the figure, and therefore cannot be used in teaching.
In the International System of Units, the unit of force is Newton.
To modify the old spring balance, just change its scale unit to Newton.
The key issue in restructuring is unit conversion. According to this relationship, the old spring balance is taken as an example. After the conversion result is determined by the table unit conversion, a wide white strip is prepared, and the scale line is drawn on the white strip in Newtons, and the reading is marked. Attach this ticked, read-out note to one side of the spring balance. In order to be firm, it can be fixed with a transparent tape, as shown, both beautiful and practical.
The old spring balance is up to the unit.
This unit conversion relationship of integer multiples is easier to reform.
The dozens of old spring balances in our school have been used very well after teaching. It has done its best and saved the school.
The method of reforming the old spring balance Zhou Jicheng The number of grams of the number of 725,800 Newtons in Baihe County, Shaanxi Province, the map of the 15th-level planning project Ji'an sub-projects will be held in Jinggangshan Xi'an Huashan Middle School factory
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