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一青年教师讲归一问题的新授课,是分三个层次教学的。第一层次为基本训练:先口算“36+3×5、48+(12+3)”等口算题,再进行简单应用题补充问题或条件的练习。习题有:①拖拉机3小时耕地15亩,——5个同学糊35个纸盒,____?④____,12个同学糊多少个纸盒?⑤____,拖拉机8小时耕地多少亩?⑥____,筑路队9天筑路多少(?),这些习题都用卡片出示,学生口述问题、条件、算式和得数。同时,还要求学生说出,前三道题是已知总数和份数,求每份数;后三题是已知一个条件为份数,问题是总数,要求添上另一条件——每份数。
A new lecture on the question of reunification by a young teacher is taught in three levels. The first level is the basic training: the first count “36 +3 × 5,48 + (12 +3)” and other topics, and then apply simple questions or conditions to supplement the practice. Exercises are: ① 3 hours of tractor arable land 15 acres, - 5 students paste 35 cartons, ____? ④ ____, 12 students paste a number of boxes? ⑤ ____, tractor eight hours of cultivated acres Mu? ____, Road Team 9 How many days? (?), These exercises are presented in cards, students oral problems, conditions, formulas and the number of. At the same time, students are also asked to say that the first three questions are the total number of known and the number of copies. The last three questions are known as a condition of the number of copies, the total number of questions and the requirement of adding another condition - number.