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    秦仕祥主页 >> 文章 >> 教学论文 >> 浏览信息《三位数乘两位书(2)》

    教学论文 | 评论(1) | 阅读(857)
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    星期一   晴天 
    主题 三位数乘两位书(2)

    教师:秦仕祥                            总第   2   课时  

     

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
                

    课题            

     

                

                
                

    三位数乘两位数            

     

                

                
                

    课时            

     

                

                
                

    2            

     

                

                
                

    授课时间            

     

                

                
                

                

     

                

                
                

    教学            

     

                

                

    目标            

     

                

                
                

    1、使学生认识升和毫升,并通过观察实际生活中1升的饮料建立1升的空间观念。

                

    2、使学生学会应用比较的方法选择适当的单位表示液体的体积。

                
                

    重点            

     

                

                

    难点            

     

                

                
                

                

     

                

                
                

    教具            

     

                

                

    学具            

     

                

                
                

                

     

                

                
                

    板书            

     

                

                

                

     

                

                

    设计            

     

                

                
                

                

     

                

                
                

                

     

                

                

    预习            

     

                

                

    要求            

     

                

                

                

     

                

                
                

                

     

                

                
                

    教师活动内容、方式            

     

                

                
                

    学生活动内容、方式            

     

                

                
                

                  

     

                

                
                

    一、训练            

     

                

                

    1、口算:教材第2页的第5题。

                

    2、计算下面各题

                

    87×59    345×46     305×46  

                

    二、课堂练习            

     

                

                

    12页的第6

                

    两题一练后及时评讲,发现问题进行纠正。

                

    22页第7

                

      先出示图片、再出示信息:

                

                                                                                                                                        

                                                                                                                
                            
                            

    火车评讲每小时行112千米,大约13小时行完全程。

                            

                            

     

                            

                            
                            
                                                                                                                                        
                            
                            

    汽车评讲每小时行105千米,大约12小时行完全程。

                            

                            

     

                            

                            
                            
                
                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                
                

    33页的第8

                

    43页的第9

                

                

     

                

                

                

     

                

                

                

     

                

                

    53页的第9

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

    63页的思考题

                

                

                                                                                                                
                            
                            

    1  0  2

                            

    × 4  5

                            

    5  1  0

                            

    4  0  8

                            

    4  5  9  0

                            
                            
                                                                                                                                                                            
                            
                            

    9  7

                            

    × 3  2

                            

    1  9  4

                            

    2  9  1

                            

    3  1  0  4

                            
                            
                
                                        

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                
                

                

     

                

                

                

     

                

                

    学生先计算,然后评讲:

                

    重点评讲305×46

                

                

     

                

                

    学生练习:

                

                

     

                

                

                

     

                

                

    学生先提问题,再列式计算解答。

                

    112×131456(千米)

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

    学生先提问题,再列式计算解答。

                

    105×121260(千米)            

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

    学生解答:821×129852(元)

                

    学生解答:

                

    方法一:115×455175(字)

                

    方法二:530045117(字)……35

                

                

     

                

                

    学生解答

                

    1537×168592(元)

                

    2845537308(个)

                

    308×134004(元)

                

                

     

                

                

    学生先思考解决,最后评讲。

                
                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                
                

                

     

                

                

                

     

                

                

                
                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

                

     

                

                

     

    秦仕祥 发表于:2012-2-20 21:11:18

    评论 

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