教学内容:人教版义务教育小学数学二年级上册“数学广角(排列组合)”。教学过程:一、入场——购票问题(点击多媒体课件:宏伟的体育馆,隐约传出打乒乓球的声音)师:这儿正要进行乒乓球比赛,你们想进去看吗?生:想!师:不过,需要买票才能进去,你们带钱来了吗?学生有的说有钱,有的说 Teaching content: People’s Education Edition compulsory primary school mathematics grade two volumes “Mathematics wide angle (arrangement combination).” Teaching process: First, the admission - ticket issue (click on the multimedia courseware: magnificent gymnasium, vaguely spread the voice of playing ping-pong) Teacher: Here is going to table tennis competition, you want to go see it? Teacher: However, you need to buy a ticket to go in. Do you bring in money? Some students say they have money, others say