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本文介绍几个在教学中有关联系农业生产的例子,供大家参考. (一)在力学中讲授平抛物体运动的时候,可结合农田灌溉中水泵流量的测定,以计算农田的灌溉面积,这样不但可巩固平抛物体的理论知识,又可结合农业实际. 水泵流量的测定方法很多,如果水泵出水管是水平的话,那么可运用平抛物体的理论知识做成一条直角尺,通过适当的计算就可测定. 先做好一条直角尺,水平的一根叫A尺,长100公
This article introduces several examples of how to link agricultural production in teaching for your reference. (1) When teaching the motion of flat-throw objects in mechanics, it can be combined with the measurement of the pump flow in farmland irrigation to calculate the irrigated area of farmland. It can not only consolidate the theoretical knowledge of plane objects, but also combine with the reality of agriculture. There are many methods for determining the pump flow rate. If the water pump outlet pipe is horizontal, then theoretical knowledge of flat objects can be used to make a square, through appropriate calculations. Can be measured. First make a square, horizontal one called A ruler, length 100 public