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生活中的数学（三年级第二部分）谢菊兰（江西师大）三、几何初步知识活动目的：巩固对面积含义的理解和面积单位在实际生活中的应用。１．这样的说法对吗？（面积的含义）喜平家有２４时和１２时电视机各一台，他发现２４时电视机的荧光屏，看起来比１２时的大得多。他说...
Mathematics in Life (Part Two of Year 3) Xie Julan (Jiangxi Normal University) III. Geometry Preliminary Knowledge Activity Objective: To consolidate the understanding of the meaning of area and the application of area units in real life. 1. Is this correct? (Meaning of area) Xiping home has a 24-hour and 12-hour television sets each, he found that 24-inch television screen, looks much larger than 12 o'clock. He said...