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【教学目标】1.知道常用的土地面积单位公顷;通过观察和推算,体会1公顷实际面积的大小;知道1公顷=10000平方米,会进行简单的单位换算。2.能借助计算器,应用平面图形的面积计算公式和有关面积单位换算的知识,解决一些简单的实际问题。3.通过积极参与观察、推算、分析的过程,培养学
【Teaching Objectives】 1. Know the common area of ?? hectares of land; through observation and projections, to understand the size of the actual area of 1 hectare; know 1 hectare = 10000 square meters, will be a simple unit conversion. 2. With the help of calculators, the application area of the graphic area calculation formula and the conversion of area knowledge, to solve some simple practical problems. 3. Through the active participation in observation, estimation, analysis of the process, training school