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案例一:20以内的进位加法教师自创一套手指教学法,帮助学生口算“20以内进位加法”的“凑十”计算方法。在学生熟练掌握后,脱离手指提高口算能力。如“9+4=?”这样教学,请同学们小手握拳,跟着老师做关于9+4的手指游戏。师:伸出几?生:伸出9。师:差几个满10?生:差1个。师:把9放哪里?生:把9放心里。师:伸出几?生:伸出4。师:给9送几个?
Case 1: Carrying within 20 additions Teachers create a set of finger teaching method to help students to count “within 20 plus carry” “Minato ” calculation method. After mastery of the students, from the fingers to improve the ability to count. Such as “9 +4 =? ” This teaching, students fists, follow the teacher on the 9 +4 finger game. Teacher: What are several students out: 9 out. Teacher: the difference between a few full 10 students: a poor one. Teacher: Put 9 put where? Health: 9 to rest assured. Teacher: How many students outstretched? Teacher: Give 9 to send a few?