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35、称象(第二课时)教学设计 教案


文章来源:徐教院附小 施君 文章作者: 发布时间:2009-09-21 00:15 点击次数:字体: [ ]

    关键词:35、称象(第二课时)教学设计 教案,,
    内容简介:

教学目标:

1能借助板书和提示回答问题,明白曹操听了曹冲的话,为什么“点头微笑”?培养学生完整、连贯地回答问题的能力。

2了解曹冲称象的步骤,并能借助小标题说一说、写一写称象的过程。

3通过查字典理解字义,正确区分形近字“称”和“秤”,“杆”和“竿”,及“称”、“杆”的多音字。

4能在老师的指导下正确书写“官”和“舷”。

教学重点、难点:了解曹冲称象的步骤,并能借助小标题说一说、写一写称象的过程。

教学过程:

一、       复习旧知,导入新课

1、             上节课,我们学习了35课《称象》。知道了有人送了曹操一头“”,他想“”出象的重量。官员们有的说“砍树造秤”,可是没人能提得起这杆大秤;有的说“宰象割块”,可是这样称象就毫无意义,所以曹操听了“直摇头”。可为什么曹操听了曹冲的话又“点头微笑”呢?(边引说边出示板书)

2、             出示问题:

曹操听了曹冲的话为什么“点头微笑”?

3、             出示三组对照图

你能不能根据这三组图片,借助练习卷上的提示来回答这个问题。

4、同桌讨论。

5、汇报交流。(评价:你能根据提示回答问题,真聪明!)

6、引读填空。

7、在卷子上写出答案。

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  

二、       排一排,写一写

过渡:曹冲是借鉴了官员们的方法,换了一种思维方式,才想出这个巧妙的办法来的?那他又是怎么一步一步地称出大象的重量的呢?

1、出示第二大题

老师这儿有五个小标题,你能不能根据课文内容给这些小标题重新排一排序呢?

2、             学生排序。

3、             出示与小标题相对应的句子,并打乱顺序。

4、             把小标题与相应的句子连起来。

5、             按顺序读句子。

6、             隐去句子,根据小标题,用“曹冲可真聪明啊!”这句话作为开头或结尾说一说称象的过程。

①自由练说

②指名2-3人说

7、             写一写称象的经过。

8、             请写好的同学读一读,评议。

 

三、       读一读,查一查,写一写

过渡:这一课里有许多生字双胞胎,他们长得可像了。曹冲怕我们弄错,特地带我们来认一认!(曹冲图)你们看,他们来了。

1、              出示“”和“”,读准字音。

2、              找区别,字音和字形,“称”是多音字。

3、              今天老师要教大家一种方法,那就是结合字义来区分多音字和形近字。

4、              出示三种解释,自由读,读懂字义。

5、              指名分句读。

6、              出示练习,学生完成。

7、              出示“” 和“竿”,读准字音。

8、              找区别,字音和字形,“杆”是多音字。

9、              查字典区分多音字和形近字。

10、          理解字义并组词。

11、师总结:在这题中同学们学会了结合字义来区分多音字的音和形近字的形,真棒!看,曹冲也情不自禁地为你们鼓起掌来!(出示曹冲图,掌声)

 

四、       指导写字

1、              出示“官”和 “舷”

2、              学生提醒易写错的地方

3、              学生写字,师巡视

4、              互评


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