string(515) "{"query":{"bool":{"must":[{"term":{"code":538691}},{"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":"\u300a\u56fe\u5f62\u7684\u65cb"}},{"match":{"doc.content":"\u300a\u56fe\u5f62\u7684\u65cb"}}]}},{"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":"\u300a\u56fe\u5f62"}},{"match":{"doc.content":"\u300a\u56fe\u5f62"}}]}},{"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(563) "{"query":{"bool":{"must":[{"term":{"category.code_stage":3}},{"term":{"category.code_subject":14}},{"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" 《图形的旋转》教学反思 - 天天资源网
《图形的旋转》教学反思
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《图形的旋转》教学反思

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时间:2020-12-23

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《图形的旋转》教学反思学生的数学学习活动应当是生动活泼的、主动的、富有个性的过程”;“要关注学生数学学习的水平,更要关注他们在数学活动中所表现出来的情感与态度”。遵循以上教学理念,在本节课的教学活动中,我力求通过创设生动、有趣的学习情境,开展观察、比较、操作等系列活动。在活动中帮助学生积极主动的进行探索性学习。同时,我还注重从学生已有知识经验的实际状态出发,大胆地引导学生在猜测、想象、比划、探索、验证、交流、操作中学习数学。首先在新课的导入阶段以轻轻松松、简简单单学数学的状态,让学生伴着音乐走进美妙的图案欣赏中,让学生感受美,以至于提高学生的审美情趣。老师搜集了一些作品,选择你喜欢的,能说明你喜欢的理由吗?之后,以具体的图形为例,先以平移的图案为新知的引入。它是怎样由这一幅图通过怎样的运动变换成这幅图形的?能否利用以前学过的知识说一说?生:它们先向右平移、再向下平移、再向左平还可以先向下平移、再向右平移、再向上平移.从而探讨旋转图案的特点,让学生在方格纸上利用学具摆一摆、看一看、想一想、说一说。力争体现“做数学”。
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