二年级数学上册《5的乘法口诀》课件2-苏教版.ppt

1、苏教版二年级数学上册教学目标1.知识目标：理解5的乘法口诀，会用5的乘法口诀进行计算。2.能力目标：通过大家自己的探索，归纳出5的乘法口诀，并能运用。2.情感目标：培养大家主动获得知识的能力和积极进取的精神。1234555123455 1=5一一 五五 得得 五五5123455 2=10二二 五五 一一 十十5123455 3=15三三 五五 十十 五五5123455 4=20四四 五五 二二 十十5123455 5=25五五 五五 二二 十十 五五故事中的数学问题：故事中的数学问题：54=2045=20孙悟空拔了孙悟空拔了4根毫毛，每根都根毫毛，每根都变出变出5个猴子，他一共变了多个猴子，他

2、一共变了多少个猴子？少个猴子？(个个)(个个)闯关活动闯关活动 做计算做计算 挣积分挣积分 换贴画换贴画闯关规则闯关规则1.做对一题可换取一张积分。做对一题可换取一张积分。2.每过一关都有许许多多的积分等着你！每过一关都有许许多多的积分等着你！3.挣够挣够20张积分，将获得精美贴画一张！张积分，将获得精美贴画一张！4.闯关成功，我将带你进入快乐大转盘！闯关成功，我将带你进入快乐大转盘！第一关第一关:看谁算看谁算得又快得又快又准。又准。53=15=52=54=51=55=45=25=闯关活动闯关活动15510205252010恭喜你！恭喜你！你已成功闯过第一关，你已成功闯过第一关，请再接再厉！请

3、再接再厉！你有你有8张积分张积分第第2关关第二关第二关:抢答，并说出口诀抢答，并说出口诀()5=15354255513()=15 5()=205()=10()5=25()4=20()2=10 5()=5恭喜你！恭喜你！你已成功闯过第二关，你已成功闯过第二关，请再接再厉！请再接再厉！你有你有？张积分张积分第第3关关第三关：根据口诀，写出两个乘法算式第三关：根据口诀，写出两个乘法算式一五得五一五得五二五一十二五一十四五二十四五二十5151555210251054204520恭喜你！恭喜你！你已成功闯过第三关你已成功闯过第三关 你有你有20张积分，将获贴画一张。张积分，将获贴画一张。欢迎光临欢迎光临

4、54 1 3 2 5每只小兔拔每只小兔拔5个个 。3只小兔拔只小兔拔()个个。()只小兔拔只小兔拔20个个。()只小兔拔只小兔拔()个个。154本课小结 理解5的乘法口诀，会用5的乘法口诀进行计算。团Tiffany，a 16yearold girl，was very shy.Last September，her best friend，Sophie，moved abroad with her family because she had to continue her studies in America.She even said she would not come back for at

5、 least a few years.1 “I was really sad the moment I heard the bad news and I didnt know what to do，”Tiffany recalled.“I shut myself in my room for a whole week.It was then that my aunt took me to a sports club one Saturday and I saw so many young people playing different kinds of sports there.I sign

6、ed up for a beginners course in volleyball and since then I have been playing this sport.Now I practice twice a week there.It is wonderful playing sports in this club and I have made lots of friends as well.2 ”The most basic aim of playing sports is that you can improve your health even if you are n

7、ot very good at sports.Besides，you can get to know a circle of people at your age while playing sports.3 Since she joined the sports club，she has opened up herself and now she has become very active and enjoys meeting and talking with others.1Its polite for girls to kiss each other on the side of th

8、e face.4Its no big deal.For most people，that is one of the reasons why they join a sports club.4 You dont have to sit down and talk to strangers.You go in for sports and it is easier to understand your partners on the same team.Now Tiffany is quite popular with her friends and she has also become more confident.团圆圆一家在台湾可受欢迎了。每天，小朋友们排着长队，等着跟它们合影留念。从“排着长队”体现出每天喜欢它们的人不计其数，特别受欢迎。从“合影留念”体现出大家都想和大熊猫留住最美丽的瞬间以作纪念。Nothing can be accomplished without norms or standards.感谢阅读下载！祝你生活愉快，身体健康