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教学内容:北师大版《义务教育课程标准实验教科书·数学》三年级上册第86页。课前交流:教师和学生玩猜班长游戏,教师通过学生坐姿,猜出了班长是谁,由此师生以比赛形式进入新课学习。教师在黑板画出记录比赛成绩的表格,胜记“~”负记“×”。(如下图)教学过程:一、听弦外之音——初识推理师:我们玩个听弦外之音的游戏,看谁的耳朵特别灵。课件出示:(1)明明不是男孩。(2)奇思和妙想是兄弟,奇思不是哥哥。
Teaching content: Beijing Normal University edition of “compulsory education curriculum standard experimental textbook · Mathematics” third grade on the first 86 pages. Pre-class communication: teachers and students play guessing squad leader game, the teacher seated by the students, guessed who the squad leader, which teachers and students to enter the new lesson in the form of learning. Teachers draw a record of the game results on the blackboard form, wins remember “~ ” negative note “x ”. (As shown below) Teaching process: First, listen to the sound of the outside world - first acquaintance division: We play a listen to the sound outside the game, to see who the ear is particularly spiritual. Courseware to produce: (1) Obviously not a boy. (2) Qi and wonderful ideas are brothers, Chisi is not brother.