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刘老师这节课教态亲切、自然,语言准确、清晰、生动,书写规范,熟练使用现代化教学设备,使不同层次的学生得到相应的提高、获得发展。
","type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMTE2NzI5MzAvMzA5NjMzNWE2MzVmMDdmY2ZmNDBmMzIzM2MyYmZjY2FfX2pwZy5oZWlj/nickname/5L-d5a6a5biC5rKz5YyX5bCP5a2m/userid/MTE2NzI5MzA=/sign/03e379383d823c85ea78f49f276d2364"},{"audio_music_id":0,"ext":{"unique_id":"8ed1a923bda5616bda9ac95149d8a620"},"img_height":682,"img_size":98,"img_url":"https://ss-mpvolc.meipian.me/users/11672930/f084487b0ebc0f249b519685c541adff__jpg.heic","img_width":1124,"is_origin":false,"sectionPublished":true,"source":0,"text":"这节课利用天平这一实物图,将数学知识置于情境之中,让学生参与到数学活动中,写出等式及不等式,含有未知数的和不含未知数的。通过对比,学生能在脑海中形成一个清晰的方程表象,构建方程的模型.
在探究知识的过程中,引导学生用数学的眼光去观察,用数学的思维去思考,用数学语言去表达,注重学生核心素养的培养。使学生领悟数学思想,积累数学活动经验,收到了良好的教学效果。
","type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMTE2NzI5MzAvZjA4NDQ4N2IwZWJjMGYyNDliNTE5Njg1YzU0MWFkZmZfX2pwZy5oZWlj/nickname/5L-d5a6a5biC5rKz5YyX5bCP5a2m/userid/MTE2NzI5MzA=/sign/03e379383d823c85ea78f49f276d2364"},{"audio_music_id":0,"ext":{"unique_id":"5190770adf92ba1c7775d1227eb7d5fd"},"img_height":2000,"img_size":287,"img_url":"https://ss-mpvolc.meipian.me/users/11672930/f7aae4ab41eaed50c5a3c50e39916d2a__jpg.heic","img_width":2000,"is_origin":false,"sectionPublished":true,"source":0,"text":"小数乘小数是在学习了例二小数乘整数基础上进行教学的,学生能够根据积的变化规律解决小数乘整数的问题,并且大部分同学能够通过对已有知识的迁移解决小数乘小数的问题,本节课重点帮助学生理解小数乘小数的算理。
","type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMTE2NzI5MzAvZjdhYWU0YWI0MWVhZWQ1MGM1YTNjNTBlMzk5MTZkMmFfX2pwZy5oZWlj/nickname/5L-d5a6a5biC5rKz5YyX5bCP5a2m/userid/MTE2NzI5MzA=/sign/03e379383d823c85ea78f49f276d2364"},{"audio_music_id":0,"ext":{"unique_id":"8e8ff3c6f7d51a6025dfc1d62a05b070"},"img_height":1500,"img_size":350,"img_url":"https://ss-mpvolc.meipian.me/users/11672930/870120b22ebb68b7e64504cd1cd9346f__jpg.heic","img_width":2000,"is_origin":false,"sectionPublished":true,"source":0,"text":"本节课以整数乘法4×2为主线,从4×2表示4个一乘2等于8个一入手,让学生初步感受计数单位不仅可以帮助我们认识数,在计算时还能理解因数与积的单位。接着通过改变4的计数单位,让学生体会到,因数的数量相乘得到积的数量,积的计数单位和因数的计数单位有着密切联系。从而,引出小数乘小数0.4×0.2,探究0.4×0.2结果时引发学生认知冲突,有些同学认为是0.08,有些同学认为是0.8。究竟是多少?教师引导学生化繁为简,从最简单的两个小数相乘0.1×0.1开始研究,在学生理解了0.1×0.1就是找0.1的十分之一。使其感受到,分得越细,取得越少,单位就越小。然后通过涂一涂,议一议等方式让学生自己在正方形纸中找到0.4×0.2,明白积是8个0.1×0.1是0.08。应用算理解决问题,并总结积的小数位数等于因数的小数位数和。最后,运用本课所学解决问题,通过李阿姨儿子帮助妈妈计算所花钱数,渗透数形结合的数学思想。
","type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMTE2NzI5MzAvODcwMTIwYjIyZWJiNjhiN2U2NDUwNGNkMWNkOTM0NmZfX2pwZy5oZWlj/nickname/5L-d5a6a5biC5rKz5YyX5bCP5a2m/userid/MTE2NzI5MzA=/sign/03e379383d823c85ea78f49f276d2364"},{"audio_music_id":0,"ext":{"unique_id":"7c3114851a8850b808ec6f38b691f659"},"img_height":1500,"img_url":"https://ss-mpvolc.meipian.me/users/11672930/dccae4f3d82dd3a35c4375a27e044ece__jpg.heic","img_width":2000,"is_origin":false,"sectionPublished":true,"source":0,"text":"王月幸老师执教的《用数对表示位置》一课,结合具体情境探索确定位置的方法,让学生学会用数对表示具体情境中的位置,通过多样化的活动,使学生经历用数对确定位置的建模过程,发展空间观念,并渗透数学“符号化”思想,让学生体验数学的简洁美。本节课王老师没有机械安排练习,而是从调动学生的兴趣点上着手,把练习与课堂互动有机结合,穿插课堂,助整课推向高潮。课尾拓展生活中的数对利用数对寻找“好习惯”的小游戏是本节课的艺术性小结,更开启了学生数学学习的新画卷,激发了学生的学习热情。
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整节课,环环相扣,层层深入,板书简洁有序,重难点一目了然,使学生最终达会到用数学方法确定位置,发展了学生的数学思考,培养了学生的空间观念和应用意识。
","type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMTE2NzI5MzAvMTUwMzBiMTI0OWRiMDlkMDk0MjUxZGRjZjQ4ZmI2NTBfX2pwZy5oZWlj/nickname/5L-d5a6a5biC5rKz5YyX5bCP5a2m/userid/MTE2NzI5MzA=/sign/03e379383d823c85ea78f49f276d2364"},{"audio_music_id":0,"ext":{"unique_id":"bbcdb4f12fa4a554871622fb13f3fe50"},"img_height":1500,"img_size":435,"img_url":"https://ss-mpvolc.meipian.me/users/11672930/931a531a452c7d0e0849933385414056__jpg.heic","img_width":2000,"is_origin":false,"sectionPublished":true,"source":0,"text":"保师附校东湖分校王天老师讲授三年级数学广角《集合》。上课之前王老师用一首传唱度很高的的蜜雪冰城主题曲,吸引孩子们的注意力,让课堂气氛活跃起来。教学过程中王老师带领孩子们通过猜拳和抢凳子两个游戏来探究集合的知识,真正让学生们参与其中寓教于乐。游戏中产生的小冠军王老师顺势跟大家介绍了保定冠军之城的由来,将课堂知识和文化很好融合在一起,拓宽了学生们的视野增加学生们的自信心,自豪感。
巩固练习环节将保定即将举行的马拉松比赛作为载体,整个过程中学生们的积极性始终非常高,学生们的学习体验非常好。
本节课通过联系学生们的生活经验以及保定自身特有的文化,从而提升学生的观察能力、学习能力、解决问题能力。
","type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMTE2NzI5MzAvOTMxYTUzMWE0NTJjN2QwZTA4NDk5MzMzODU0MTQwNTZfX2pwZy5oZWlj/nickname/5L-d5a6a5biC5rKz5YyX5bCP5a2m/userid/MTE2NzI5MzA=/sign/03e379383d823c85ea78f49f276d2364"},{"audio_music_id":0,"ext":{"unique_id":"bb74fe48421b0a262e53bdd4c19bc233"},"img_height":696,"img_size":99,"img_url":"https://ss-mpvolc.meipian.me/users/11672930/0f29ae93da1abf85bceb34ba6877cc06__jpg.heic","img_width":1242,"is_origin":false,"sectionPublished":true,"source":0,"text":"《1亿有多大》是人教版小学四年级数学第一单元的内容,这是一节数学实践活动课,但由于1亿这个数太大,学生很难结合具体的量获得直观感受。
","type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMTE2NzI5MzAvMGYyOWFlOTNkYTFhYmY4NWJjZWIzNGJhNjg3N2NjMDZfX2pwZy5oZWlj/nickname/5L-d5a6a5biC5rKz5YyX5bCP5a2m/userid/MTE2NzI5MzA=/sign/03e379383d823c85ea78f49f276d2364"},{"audio_music_id":0,"ext":{"unique_id":"b70b134facd4ce15a7943d1b4b51780a"},"img_height":690,"img_size":81,"img_url":"https://ss-mpvolc.meipian.me/users/11672930/1cbd25023ec6d40077102cd301b0a2db__jpg.heic","img_width":1226,"is_origin":false,"sectionPublished":true,"source":0,"text":"李老师从不同的角度:数的组成、高度、重量、时间、长度五个方面,让学生经历猜想-实验-推理-对照的过程,运用部分推算整体的方法,通过探究1亿张纸的高度、1亿粒米的重量、画1亿个点的时间、走1亿步的距离,借助具体的数量,发展了学生的数感,真切的感受了1亿有多大。
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","type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMTE2NzI5MzAvMzA5NjMzNWE2MzVmMDdmY2ZmNDBmMzIzM2MyYmZjY2FfX2pwZy5oZWlj/nickname/5L-d5a6a5biC5rKz5YyX5bCP5a2m/userid/MTE2NzI5MzA=/sign/03e379383d823c85ea78f49f276d2364"},{"audio_music_id":0,"ext":{"unique_id":"8ed1a923bda5616bda9ac95149d8a620"},"img_height":682,"img_size":98,"img_url":"https://ss-mpvolc.meipian.me/users/11672930/f084487b0ebc0f249b519685c541adff__jpg.heic","img_width":1124,"is_origin":false,"sectionPublished":true,"source":0,"text":"这节课利用天平这一实物图,将数学知识置于情境之中,让学生参与到数学活动中,写出等式及不等式,含有未知数的和不含未知数的。通过对比,学生能在脑海中形成一个清晰的方程表象,构建方程的模型.
在探究知识的过程中,引导学生用数学的眼光去观察,用数学的思维去思考,用数学语言去表达,注重学生核心素养的培养。使学生领悟数学思想,积累数学活动经验,收到了良好的教学效果。
","type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMTE2NzI5MzAvZjA4NDQ4N2IwZWJjMGYyNDliNTE5Njg1YzU0MWFkZmZfX2pwZy5oZWlj/nickname/5L-d5a6a5biC5rKz5YyX5bCP5a2m/userid/MTE2NzI5MzA=/sign/03e379383d823c85ea78f49f276d2364"},{"audio_music_id":0,"ext":{"unique_id":"5190770adf92ba1c7775d1227eb7d5fd"},"img_height":2000,"img_size":287,"img_url":"https://ss-mpvolc.meipian.me/users/11672930/f7aae4ab41eaed50c5a3c50e39916d2a__jpg.heic","img_width":2000,"is_origin":false,"sectionPublished":true,"source":0,"text":"小数乘小数是在学习了例二小数乘整数基础上进行教学的,学生能够根据积的变化规律解决小数乘整数的问题,并且大部分同学能够通过对已有知识的迁移解决小数乘小数的问题,本节课重点帮助学生理解小数乘小数的算理。
","type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMTE2NzI5MzAvZjdhYWU0YWI0MWVhZWQ1MGM1YTNjNTBlMzk5MTZkMmFfX2pwZy5oZWlj/nickname/5L-d5a6a5biC5rKz5YyX5bCP5a2m/userid/MTE2NzI5MzA=/sign/03e379383d823c85ea78f49f276d2364"},{"audio_music_id":0,"ext":{"unique_id":"8e8ff3c6f7d51a6025dfc1d62a05b070"},"img_height":1500,"img_size":350,"img_url":"https://ss-mpvolc.meipian.me/users/11672930/870120b22ebb68b7e64504cd1cd9346f__jpg.heic","img_width":2000,"is_origin":false,"sectionPublished":true,"source":0,"text":"本节课以整数乘法4×2为主线,从4×2表示4个一乘2等于8个一入手,让学生初步感受计数单位不仅可以帮助我们认识数,在计算时还能理解因数与积的单位。接着通过改变4的计数单位,让学生体会到,因数的数量相乘得到积的数量,积的计数单位和因数的计数单位有着密切联系。从而,引出小数乘小数0.4×0.2,探究0.4×0.2结果时引发学生认知冲突,有些同学认为是0.08,有些同学认为是0.8。究竟是多少?教师引导学生化繁为简,从最简单的两个小数相乘0.1×0.1开始研究,在学生理解了0.1×0.1就是找0.1的十分之一。使其感受到,分得越细,取得越少,单位就越小。然后通过涂一涂,议一议等方式让学生自己在正方形纸中找到0.4×0.2,明白积是8个0.1×0.1是0.08。应用算理解决问题,并总结积的小数位数等于因数的小数位数和。最后,运用本课所学解决问题,通过李阿姨儿子帮助妈妈计算所花钱数,渗透数形结合的数学思想。
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整节课,环环相扣,层层深入,板书简洁有序,重难点一目了然,使学生最终达会到用数学方法确定位置,发展了学生的数学思考,培养了学生的空间观念和应用意识。
","type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvMTE2NzI5MzAvMTUwMzBiMTI0OWRiMDlkMDk0MjUxZGRjZjQ4ZmI2NTBfX2pwZy5oZWlj/nickname/5L-d5a6a5biC5rKz5YyX5bCP5a2m/userid/MTE2NzI5MzA=/sign/03e379383d823c85ea78f49f276d2364"},{"audio_music_id":0,"ext":{"unique_id":"bbcdb4f12fa4a554871622fb13f3fe50"},"img_height":1500,"img_size":435,"img_url":"https://ss-mpvolc.meipian.me/users/11672930/931a531a452c7d0e0849933385414056__jpg.heic","img_width":2000,"is_origin":false,"sectionPublished":true,"source":0,"text":"保师附校东湖分校王天老师讲授三年级数学广角《集合》。上课之前王老师用一首传唱度很高的的蜜雪冰城主题曲,吸引孩子们的注意力,让课堂气氛活跃起来。教学过程中王老师带领孩子们通过猜拳和抢凳子两个游戏来探究集合的知识,真正让学生们参与其中寓教于乐。游戏中产生的小冠军王老师顺势跟大家介绍了保定冠军之城的由来,将课堂知识和文化很好融合在一起,拓宽了学生们的视野增加学生们的自信心,自豪感。
巩固练习环节将保定即将举行的马拉松比赛作为载体,整个过程中学生们的积极性始终非常高,学生们的学习体验非常好。
本节课通过联系学生们的生活经验以及保定自身特有的文化,从而提升学生的观察能力、学习能力、解决问题能力。
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