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人教版新一年级下册小学数学教材“新在哪里”?

  • 2026-04-05 16:38:28
人教版新一年级下册小学数学教材“新在哪里”?

人教版新一年级下册小学数学教材四大编写特点

      第一条,就是加强了数与运算的密切联系。本册教材将100以内的数和100以内的加减法接续排布,突出了体现了数的概念和运算,都是基于计数单位及其个数的表达与运作的特点。这样的排布也使得三个单元自成整体,学生在认识完数之后,进一步的去学习计算知识,更好的体现出技术单位在其中的核心地位。

    第二,就是注重对笔算本质的理解。笔算就是口算过程的一种记录方式,和口算的算理是相同的,算法是相通的。新教材将100以内的笔算加减法由原来的二年级上册调整过来,放到了100以内的口算加减法之后。而且重新调整了100以内加减法的整体编排结构,使得两个单元互为补充,让学生能够充分的迁移口算的学习经验去学习笔算,从而对笔算的本质有了更为深刻的认识。

      第三,就是重视对数量关系的总结与概括。这一点也很充分,是我们这一册教材也是专门的安排了数量间的加减关系单元,体现数量关系主题。并且先总结学生在前面学习过的,可以同整在部分与整体关系下的用加减法解决的问题,再将其拓展延伸到两个数量间的相差关系中,并且将三个相差的关系的问题也接续排布,通过问题之间的联系使学生进一步感悟这些两个数量间的相差关系问题和部分与整体问题之间的联系。在一年级整体学习了用加减法解决的问题的基础上,形成对加减关系或者说加法模型、减法模型的一个初步的认识。

      第四,就是加强知识的复习与关联。本册教材在每个单元的最后都安排了整理与复习的内容,也在最后设计了复习与关联的单元,突出体现了随着知识的学习不断强化对知识的复习。那么这种复习呢,我想肯定也不仅是体现在对于所学知识点的回顾上,更重要的是让学生建立起新旧知识之间、不同内容的知识之间的联系。这一点也不仅体现在这种整理和复习的对应板块上。

      我们回顾本册教材的主要内容也可以发现,第一单元认识平面图形,平面图形是在之前认识的立体图形的基础上描画得到的,体现了立体图形与平面图形的关联。第二单元20以内的退位减法,其主要的内容的编排思路都与20以内的进位加法的编排一致,体现了进位加法和退位减法之间的关联。100以内数的认识突出了计数单位百的认识过程,这与前面一年级上册两次认识时,以及后面认识更大的计数单位千和万的编排也是一致的,体现了这种对特殊数认识上的关联性。后面还有笔算与口算的关联性,数量用加减法解决问题之间的关联性,教材都用各种的方式予以了凸显。所以说加强知识的复习与关联也是本册教材的一个主要特点,也是我在介绍的开头这一个汇报的主题中所强调的一年级下册教材想要突出体现的一个观点。

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  1. CONNECT:[ UseTime:0.000641s ] mysql:host=127.0.0.1;port=3306;dbname=c_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000986s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000321s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000264s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000504s ]
  6. SELECT * FROM `set` [ RunTime:0.000232s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000498s ]
  8. SELECT * FROM `article` WHERE `id` = 463271 LIMIT 1 [ RunTime:0.000475s ]
  9. UPDATE `article` SET `lasttime` = 1775595464 WHERE `id` = 463271 [ RunTime:0.017724s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000246s ]
  11. SELECT * FROM `article` WHERE `id` < 463271 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000417s ]
  12. SELECT * FROM `article` WHERE `id` > 463271 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000382s ]
  13. SELECT * FROM `article` WHERE `id` < 463271 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000591s ]
  14. SELECT * FROM `article` WHERE `id` < 463271 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.003330s ]
  15. SELECT * FROM `article` WHERE `id` < 463271 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000769s ]
0.096911s