To punish the quality of teaching instruments and the quality of instruments

　　With the development of education, the national and local governments have increased the investment in educational equipment, especially the weak school reform project of rural compulsory education in the Midwest since the implementation of a large number of teaching equipment into the school, greatly improving the school conditions, teaching equipment for the development of experimental teaching has laid a solid foundation. But in this process there are also some problems, such as access to part of the school's teaching instrument product quality, a number of problems through a variety of channels, and constantly into the school, seriously affecting the experimental teaching, waste of education funds, reduce the effectiveness of equipment.

　　Some equipment quality problems:

　　1, three No "products still exist. Some equipment no manufacturer name, no production date, no production address, some equipment without the use of manuals and certificates. In recent years, "thin change" school equipped with a lot of teaching equipment for "three No" products, such as primary school use of digital counters, secondary schools have scales, electronic counters and so on. Some products indicate the manufacturer, but no production date and inspection certificate, also no contact telephone; some have neither the inspection seal nor the inspection date; Some product certification and product does not correspond to, some will be printed in the manual, some have no manual and no certification.

　　2, some product quality is poor, the experiment effect is poor, the use time is short. Teaching equipment part of chemical equipment such as test tube, beaker, such as a touch on the broken, a burning on the explosion, the school has occurred; physical instruments such as the new induction motor in doing experiments can not discharge normal, no demonstration role; The new balance found in the biological instrument was rusty, the adjustment slider is not flexible enough, the new eyeball model can not stand up; the circuit of the main console of the experimental platform fails to control the number of voltage currents on the students ' experimental table, and the outdoor ping-pong table is easily broken and broken. A school of 8 weight meters, only one semester, there are problems, the investigation site on the same person volume, showing 8 different data, 70 kilograms of people have a display 40 kilograms; the quality of the electrode is not good, the experiment time is too long and the experiment result is not good; sliding rheostat, some slip is not smooth, some of the slider is soft and easy to deformation, some contacts are often bad, and some products surface treatment is not in place, the surface is rough, the printing line is not clear

　　3, product design is unreasonable, some products have safety hidden trouble. The Biology laboratory table installs the illumination lamp, the student uses easily to fall the broken; J1202 High school students power supply, teachers in the classroom to do demonstration experiments, in the adjustment of current, because the student power is too sensitive, often appear automatic power-off protection, resulting in the experiment can not continue; Hydroelectric solution demonstrator, the spacing of two electrodes is too large, resulting in low experimental efficiency.