string(516) "{"query":{"bool":{"must":[{"term":{"code":1055590}},{"term":{"time.delete_at":"1970-01-01 08:00:00"}},{"term":{"status.check":99}}],"adjust_pure_negative":true,"boost":1}},"highlight":{"pre_tags":"","post_tags":"<\/tag>","fields":[{"doc.title":{"type":"plain"}},{"content":{"type":"plain"}}]},"sort":[{"_score":{"order":"desc"}},{"time.update_at":{"order":"desc","missing":"_first","unmapped_type":"date"}},{"status.list_order":{"order":"desc","missing":"_first","unmapped_type":"integer"}}],"from":0,"size":20}" string(108) "Client error: `POST http://110.40.59.72:9200/ttzyw_content/_search` resulted in a `400 Bad Request` response" string(524) "{"query":{"bool":{"must":[{"term":{"category.code_scene":2}},{"term":{"time.delete_at":"1970-01-01 08:00:00"}},{"term":{"status.check":99}}],"adjust_pure_negative":true,"boost":1}},"highlight":{"pre_tags":"","post_tags":"<\/tag>","fields":[{"doc.title":{"type":"plain"}},{"content":{"type":"plain"}}]},"sort":[{"_score":{"order":"desc"}},{"time.update_at":{"order":"desc","missing":"_first","unmapped_type":"date"}},{"status.list_order":{"order":"desc","missing":"_first","unmapped_type":"integer"}}],"from":0,"size":5}" string(108) "Client error: `POST http://110.40.59.72:9200/ttzyw_content/_search` resulted in a `400 Bad Request` response" string(628) "{"query":{"bool":{"must":[{"bool":{"should":[{"match":{"doc.title":"\u3010\u6caa\u6559\u7248\u3011"}},{"match":{"doc.content":"\u3010\u6caa\u6559\u7248\u3011"}}]}},{"term":{"time.delete_at":"1970-01-01 08:00:00"}},{"term":{"status.check":99}}],"adjust_pure_negative":true,"boost":1}},"highlight":{"pre_tags":"","post_tags":"<\/tag>","fields":[{"doc.title":{"type":"plain"}},{"content":{"type":"plain"}}]},"sort":[{"_score":{"order":"desc"}},{"time.update_at":{"order":"desc","missing":"_first","unmapped_type":"date"}},{"status.list_order":{"order":"desc","missing":"_first","unmapped_type":"integer"}}],"from":0,"size":10}" string(108) "Client error: `POST http://110.40.59.72:9200/ttzyw_content/_search` resulted in a `400 Bad Request` response" string(604) "{"query":{"bool":{"must":[{"bool":{"should":[{"match":{"doc.title":"\u3010\u6caa\u6559"}},{"match":{"doc.content":"\u3010\u6caa\u6559"}}]}},{"term":{"time.delete_at":"1970-01-01 08:00:00"}},{"term":{"status.check":99}}],"adjust_pure_negative":true,"boost":1}},"highlight":{"pre_tags":"","post_tags":"<\/tag>","fields":[{"doc.title":{"type":"plain"}},{"content":{"type":"plain"}}]},"sort":[{"_score":{"order":"desc"}},{"time.update_at":{"order":"desc","missing":"_first","unmapped_type":"date"}},{"status.list_order":{"order":"desc","missing":"_first","unmapped_type":"integer"}}],"from":0,"size":10}" string(108) "Client error: `POST http://110.40.59.72:9200/ttzyw_content/_search` resulted in a `400 Bad Request` response" string(562) "{"query":{"bool":{"must":[{"term":{"category.code_stage":2}},{"term":{"category.code_subject":6}},{"term":{"time.delete_at":"1970-01-01 08:00:00"}},{"term":{"status.check":99}}],"adjust_pure_negative":true,"boost":1}},"highlight":{"pre_tags":"","post_tags":"<\/tag>","fields":[{"doc.title":{"type":"plain"}},{"content":{"type":"plain"}}]},"sort":[{"_score":{"order":"desc"}},{"time.update_at":{"order":"desc","missing":"_first","unmapped_type":"date"}},{"status.list_order":{"order":"desc","missing":"_first","unmapped_type":"integer"}}],"from":0,"size":10}" string(108) "Client error: `POST http://110.40.59.72:9200/ttzyw_content/_search` resulted in a `400 Bad Request` response" 【沪教版】三年级数学下册6.1乘与除教案1 - 天天资源网
【沪教版】三年级数学下册6.1乘与除教案1
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【沪教版】三年级数学下册6.1乘与除教案1

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时间：2022-04-06

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乘除法计算教学目标：1.知识目标：复习用一位数乘和除，两步计算式题。2.能力目标：能正确熟练掌握两步计算式题的运算顺序。3.情感目标：培养学生认真计算，及时检查的学习习惯。培养学生语言表达能力。教学重点：用一位数乘和除，掌握混合运算顺序。教学难点：计算的正确率（计算基本技能的掌握度）。教学准备：课件与礼物（书签若干）。教学过程：一、导入师：寒假已经结束，第一天开学，我们的好朋友乐乐就给大家出了一个问题（出示P2页问题，边出示边读题）。它想让大家先猜一猜，得到的可能是什么图案？生：一只鸡。生：可能是一朵花。生：猜不出，因为还不知道答案。师：请大家动笔算一算，涂一涂，看谁先得出结论，先得出结论的前5个小朋友就能得到欢欢送出的礼物。二、计算：1.学生独立完成P2练习，教师巡视后集体校对。个别题目在校对时说明运算顺序。（分层练习：1.用一位数乘和除；2.混合运算）76×8=60898÷7=1426×4=10432×3=96420÷6=7083×3=249936÷3=31243×8×3=1032809÷4=202……1 13066÷7÷6=733288÷6×7=336563÷8=70……34×327=1308444÷5=88……45527×4－1888=220357×3=1071132×2＋431=695858÷6＋158=301938÷7－45=894764－83×6=266647＋231×3=6862227×7÷6=259788÷4－89=1081214÷6=202……2生讨论1)答案（按一步计算的先校对，再校对混合运算）2)打五角星的说运算顺序（1、2、3运算顺序作比较。4、5、6运算顺序作比较）3)图案：一棵树。2.师：给前5位学生发礼物和讨论完整的学生发礼物。三、练习看谁速度最快，正确率最高4207÷7×3846－117×4984÷3＋195315＋185÷5724－324×23815÷7四、小结师：通过今天乘除法的计算，你想告诉大家些什么？
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