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《两位数加两位数的不进位笔算加法》课件

  • 2026-05-11 09:21:44
《两位数加两位数的不进位笔算加法》课件

《两位数加两位数的不进位笔算加法》课件

适用年级和教材版本：《两位数加两位数的不进位笔算加法》课件+教案_人教版数学一年级下册

🧩导入环节
通过宣布研学活动激发学生兴趣，以提问引导学生分享对博物馆的认知，借助播放视频让学生初步了解国家博物馆，最后以任务形式引出数学问题，自然地将生活场景与课堂教学相融合。

🪅探究一 提出问题列算式
结合研学场景，引出两位数加法实际问题，激发学生解决问题的兴趣，明确学习目标。​
 
📢探究二 探究口算方法
鼓励学生自主探索，通过交流展示不同口算思路，培养思维的灵活性与合作交流能力。
​
🪀探究三 学习竖式计算
系统讲解竖式计算规则，引导思考计算顺序，帮助学生掌握新算法，为后续学习打基础。​

🏸课件整体以博物馆研学情境贯穿始终，画面活泼童趣，互动性强，将抽象的笔算问题转化为可操作、可感知的研学任务。

🏓贴合一年级学生的认知特点，注重算理理解与书写规范的结合，有效激发学生的学习兴趣，培养学生的运算能力与应用意识。

🎐让学生在 “当研学小助手” 的过程中轻松掌握两位数加两位数不进位的笔算方法。

#数学 #小学数学 #一下数学 #数学老师 #小学数学老师 #数学教案 #数学备课 #课件ppt

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  1. CONNECT:[ UseTime:0.000389s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000714s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000283s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000248s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000525s ]
  6. SELECT * FROM `set` [ RunTime:0.000200s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000503s ]
  8. SELECT * FROM `article` WHERE `id` = 498157 LIMIT 1 [ RunTime:0.002450s ]
  9. UPDATE `article` SET `lasttime` = 1778724117 WHERE `id` = 498157 [ RunTime:0.015462s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000323s ]
  11. SELECT * FROM `article` WHERE `id` < 498157 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000448s ]
  12. SELECT * FROM `article` WHERE `id` > 498157 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000441s ]
  13. SELECT * FROM `article` WHERE `id` < 498157 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001266s ]
  14. SELECT * FROM `article` WHERE `id` < 498157 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.011870s ]
  15. SELECT * FROM `article` WHERE `id` < 498157 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.017055s ]
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