工作就用美篇工作版","guide_search_desc":"海量模板范文,一键做同款 工作就用美篇工作版","img_beautify_switch":0,"ad_free":0,"text_direction":"1","template":{"id":6,"series_id":2,"theme_id":2},"container":{},"redirect":{"redirect_type":1,"img_url":false,"link_url":"/wap/downloadpage/backpage","button_bg_color":false,"button_desc":false,"redirect_desc":false},"edit_date_str":"更新于 2018-04-13","current_time":1744308378,"font_name":"","rcmd_meipian":0,"hide_article_link":0,"from_wechat":false,"topk_keywords":[{"name":"变化","score":0.289548},{"name":"正比例","score":0.202587},{"name":"学生","score":0.201337},{"name":"板书","score":0.163944},{"name":"体重","score":0.13107},{"name":"相关联","score":0.130342},{"name":"妙想","score":0.121403},{"name":"年龄","score":0.113538},{"name":"老师","score":0.111326},{"name":"引出","score":0.110864}],"content":{"article_id":96375325,"content":[{"img_height":1126,"img_url":"https://ss-mpvolc.meipian.me/users/25129817/0fcc0dbfbb214984999bd08446d3654e__jpg.heic","img_width":2000,"text":"
2018年4月13日上午,我在榆树林子小学听了魏丽莹老师执教六年级下册第四单元第一节《变化的量》一课。
魏老师首先引导学生回忆固定的量。
"},{"img_height":1126,"img_url":"https://ss-mpvolc.meipian.me/users/25129817/61999baa464c488992343c494890d8f7__jpg.heic","img_width":2000,"text":"长方形面积的变化,引出变化的量之一。
"},{"img_height":1126,"img_url":"https://ss-mpvolc.meipian.me/users/25129817/1faf52417b414d999a7fb7ed1cf5b871__jpg.heic","img_width":2000,"text":"水的高度变化,引出变化的量之二。
"},{"img_height":1126,"img_url":"https://ss-mpvolc.meipian.me/users/25129817/137fe1b2a112446ca17bbdfe1b183948__jpg.heic","img_width":2000,"text":"小树的长高,引出变化的量之三。
"},{"img_height":1126,"img_url":"https://ss-mpvolc.meipian.me/users/25129817/659fbcfd21af47a3ad2ad77ef39acd3d__jpg.heic","img_width":2000,"text":" 借助妙想六岁之前年龄和体重的变化情况,引导学生观察妙想的体重随着年龄的增长而增长。在这个过程中,魏老师班的学生轻松地找出了两个相关联的量:年龄和体重。学生初步明确了这两个变化量之间的关系。
"},{"img_height":1126,"img_url":"https://ss-mpvolc.meipian.me/users/25129817/f805e13289864e638db14e3df887622d__jpg.heic","img_width":2000,"text":" 接下来,让学生借助图像研究骆驼体温和时间之间的关系,利用小组合作的形式完成,之后小组汇报。(见视频)
"},{"text":" 小组汇报的形式恰当、有效,每个组员都得到了锻炼。
","video_thumbnail":"https://ss-mpvolc.meipian.me/users/25129817/1523606848377__jpg.heic","video_url":"http://video.ivwen.com/users/25129817/1523606848353.mp4"},{"text":" 多媒体课件制作画面清晰、步骤明确,起到了非常好的示范作用。
","video_thumbnail":"https://ss-mpvolc.meipian.me/users/25129817/1523606965666__jpg.heic","video_url":"http://video.ivwen.com/users/25129817/1523606965662.mp4"},{"img_height":1126,"img_url":"https://ss-mpvolc.meipian.me/users/25129817/51c78669ba5d4f7cba78860ae3852e61__jpg.heic","img_width":2000,"text":" 魏老师让学生找出生活中的两个相关联的量?学生举出八组例子。今天的气温骤降,一个女同学站起来说:“我们穿的衣物随着气温的变化而变化,衣物的多少和气温是两个相关联的量。”听到这里,我感到学生应用数学的意识真强呀!
"},{"img_height":1126,"img_url":"https://ss-mpvolc.meipian.me/users/25129817/3481f1f5ea7542d7a8618c3190174d53__jpg.heic","img_width":2000,"text":" 这是本节课完整的板书,板书中既有知识要点,又有探究方法,起到了引领示范作用。
"},{"img_height":1126,"img_url":"https://ss-mpvolc.meipian.me/users/25129817/4d92ab2e8acb419b855120bce9bcc23e__jpg.heic","img_width":2000,"text":"对本课的建议:
一是关于板书书写时机调整,“一个量随着另一个量的变化而变化”这句话在第一个问题串,也就是研究完“年龄和体重”以后就出现。
二是关于知识系统链接的。这节课为后续学习正比例、正比例的图像以及反比例起到较好的铺垫作用。因此,在处理练习题,底面积不变,圆柱的体积和高是怎样变化的时候,已经初步渗透正比例了,在这里就是要点明“不变量,两个变量”这样的关键词,为分辨正比例、反比例做好充足的准备。
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魏老师首先引导学生回忆固定的量。
"},{"img_height":1126,"img_url":"https://ss-mpvolc.meipian.me/users/25129817/61999baa464c488992343c494890d8f7__jpg.heic","img_width":2000,"text":"长方形面积的变化,引出变化的量之一。
"},{"img_height":1126,"img_url":"https://ss-mpvolc.meipian.me/users/25129817/1faf52417b414d999a7fb7ed1cf5b871__jpg.heic","img_width":2000,"text":"水的高度变化,引出变化的量之二。
"},{"img_height":1126,"img_url":"https://ss-mpvolc.meipian.me/users/25129817/137fe1b2a112446ca17bbdfe1b183948__jpg.heic","img_width":2000,"text":"小树的长高,引出变化的量之三。
"},{"img_height":1126,"img_url":"https://ss-mpvolc.meipian.me/users/25129817/659fbcfd21af47a3ad2ad77ef39acd3d__jpg.heic","img_width":2000,"text":" 借助妙想六岁之前年龄和体重的变化情况,引导学生观察妙想的体重随着年龄的增长而增长。在这个过程中,魏老师班的学生轻松地找出了两个相关联的量:年龄和体重。学生初步明确了这两个变化量之间的关系。
"},{"img_height":1126,"img_url":"https://ss-mpvolc.meipian.me/users/25129817/f805e13289864e638db14e3df887622d__jpg.heic","img_width":2000,"text":" 接下来,让学生借助图像研究骆驼体温和时间之间的关系,利用小组合作的形式完成,之后小组汇报。(见视频)
"},{"text":" 小组汇报的形式恰当、有效,每个组员都得到了锻炼。
","video_thumbnail":"https://ss-mpvolc.meipian.me/users/25129817/1523606848377__jpg.heic","video_url":"http://video.ivwen.com/users/25129817/1523606848353.mp4"},{"text":" 多媒体课件制作画面清晰、步骤明确,起到了非常好的示范作用。
","video_thumbnail":"https://ss-mpvolc.meipian.me/users/25129817/1523606965666__jpg.heic","video_url":"http://video.ivwen.com/users/25129817/1523606965662.mp4"},{"img_height":1126,"img_url":"https://ss-mpvolc.meipian.me/users/25129817/51c78669ba5d4f7cba78860ae3852e61__jpg.heic","img_width":2000,"text":" 魏老师让学生找出生活中的两个相关联的量?学生举出八组例子。今天的气温骤降,一个女同学站起来说:“我们穿的衣物随着气温的变化而变化,衣物的多少和气温是两个相关联的量。”听到这里,我感到学生应用数学的意识真强呀!
"},{"img_height":1126,"img_url":"https://ss-mpvolc.meipian.me/users/25129817/3481f1f5ea7542d7a8618c3190174d53__jpg.heic","img_width":2000,"text":" 这是本节课完整的板书,板书中既有知识要点,又有探究方法,起到了引领示范作用。
"},{"img_height":1126,"img_url":"https://ss-mpvolc.meipian.me/users/25129817/4d92ab2e8acb419b855120bce9bcc23e__jpg.heic","img_width":2000,"text":"对本课的建议:
一是关于板书书写时机调整,“一个量随着另一个量的变化而变化”这句话在第一个问题串,也就是研究完“年龄和体重”以后就出现。
二是关于知识系统链接的。这节课为后续学习正比例、正比例的图像以及反比例起到较好的铺垫作用。因此,在处理练习题,底面积不变,圆柱的体积和高是怎样变化的时候,已经初步渗透正比例了,在这里就是要点明“不变量,两个变量”这样的关键词,为分辨正比例、反比例做好充足的准备。
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