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【随笔感悟】场景赋能素养导向下小学数学新教材教学实践探究

  • 2026-05-08 08:22:00
【随笔感悟】场景赋能素养导向下小学数学新教材教学实践探究

栏目简介

随笔感悟:用笔端记录教育教学中的思考,包括案例透视、好课多磨、教学思考、学习感悟等内容,于且学且行且思中遇到更好的自己。

教师简介

张永梅:招远市罗峰学校 

教育理念:以生为本、素养为核、场景为基、结构为脉、融合为径,引导学生在真实情境中感知数学、在自主探究中建构思维、在实践应用中提升素养。

场景赋能素养导向下小学数学新教材教学实践探究

🌸 · 🌿 · 🌸 · 🌿 · 🌸

小学中年级数学教学的核心,在于培育学生几何思维与数学核心素养,助力学生完成从直观感知到抽象思维的平稳过渡。传统数学教学常存在知识碎片化、概念抽象化、教学与生活脱节等问题,难以契合学生认知发展规律。青岛版小学数学新教材立足三年级学生认知特点,以真实生活场景包裹数学知识,以结构化脉络串联学习内容,以跨学科视野拓展教学内涵,为突破传统教学瓶颈、落实新课标理念提供了全新路径。参与教材深度解读培训后,笔者结合一线教学实践,对三年级下册新教材的编排匠心、内在价值与实施策略展开思考,探索更贴合学生成长的数学教学模式。

一、以生活场景为载体,

让数学知识可感可悟

新教材最大的特色是知识场景化、概念具象化每个单元都以真实生活情境为起点,降低抽象概念的理解难度,契合三年级学生认知特点。

“繁忙的工地——线与角”教学中,教材以探照灯光线、塔吊钢索、工地支架等画面引入射线、直线、线段与角的认识。教学中,我先让学生观察情境图,描述 “光线从哪里射出、能射多远”“钢索有几个端点”,再用手势模仿、画图表达,最后对比梳理三种线的特征。依托工地场景,原本抽象的 “无限延伸” 变得直观可感,学生能轻松理解概念本质。结合 “年、月、日的秘密” 主题活动,我引导学生结合生日、节日、日历等生活经验,探究年月日的由来与规律,让时间概念与生活经验深度结合。

“美丽的公园—— 图形与周长”教学中,以公园花坛、小路、草坪等场景为依托,让学生在 “围一围、量一量、算一算”中感知周长的含义。通过 “给花坛围护栏需要多长的材料”这一真实问题,引导学生自主发现 “封闭图形一周的长度就是周长”,并探究长方形、正方形的周长计算方法。场景让数学问题从课本走向生活,学生学得主动、理解透彻。

“我家圆了安居梦——长方形、正方形的面积”教学中,以装修房间、铺地砖、测量家具等家庭场景为载体,让学生感受到面积的实际意义。通过比较“卧室地面大小”“书桌桌面大小”,理解面积的含义;通过“1平方米、1平方分米能摆多少个小正方形”,建立面积单位表象。家居场景贴近学生生活,有效突破“周长与面积混淆”这一常见难点。

二、以结构化建构为脉络,

让知识体系连贯有序

新教材遵循螺旋上升、前后关联的结构化编排思路,数与代数、图形与几何、统计与概率、综合与实践四大领域双线并进、层层递进。

数与代数领域,“大数知多少——以上数的认识”承接低年级万以内数的认识,为后续更大数的学习奠基;“农业大丰收——位数除以两位数”承接表内除法、多位数除以一位数,形成完整的除法运算能力培养链;“绿色生态园 ——解决问题” 以两步计算实际问题为载体,将运算与应用结合,提升分析与解决问题能力。教学中,我注重沟通知识间的联系,引导学生梳理知识脉络,形成结构化认知,而非孤立学习知识点。

图形与几何领域,教材按照“线与角→周长→面积”的顺序编排,从一维图形测量逐步过渡到二维图形测量,逻辑清晰、循序渐进。先认识线与角,奠定图形认知基础;再学习周长,理解一维长度累加;最后学习面积,认识二维空间大小。结构化编排帮助学生建立完整的图形知识体系,空间观念稳步发展。

统计与概率领域,“订校服——条形统计图”是学生首次系统学习统计知识。教材以“统计身高、订购校服”为真实任务,让学生完整经历数据收集、整理、绘图、分析、决策的全过程,落实数据意识核心素养,为后续统计学习奠定基础。

三、以跨学科融合为延伸,

让数学课堂有温有魂

教材通过主题活动与综合实践,实现数学与历史文化、生活实践、德育教育的融合,让数学课堂更有厚度与温度。

度量衡的故事主题活动,引导学生了解古代测量方式、秦始皇统一度量衡的历史,感受统一单位的必要性。教学中,我让学生分享课前搜集的资料,讲述古人用身体、工具测量的故事,理解数学单位是人类生产生活的智慧结晶。这一活动不仅深化知识理解,更实现了数学文化传承与德育渗透。

年、月、日的秘密主题活动融合天文、历法常识,让学生明白年月日与地球、月球运动有关,感受数学与科学的联系;“订校服”融合生活决策与班级事务,培养学生的数据观念与责任意识;“安居梦”融入家庭生活与家国情怀,让学生体会数学在改善生活、建设家园中的作用。跨学科融合让数学跳出课本,成为连接生活、文化、社会的桥梁。

四、以素养落地为目标,

优化课堂教学实践

作为三年级数学教师,依托新教材开展教学,必须实现从“教知识” 到 “育素养”的转变,落实四大核心策略:

1. 先情境后知识,让探究走在讲授前

每节课以教材场景为起点,提出真实问题,让学生先观察、先思考、先尝试,教师再适时引导总结。如教学多位数除以两位数时,以“分粮食、分蔬菜”的农场情境引入,让学生自主探索计算方法,在交流中优化算法,理解算理。

2. 重操作说理,让思维过程看得见

在图形与几何教学中,多让学生动手画、量、拼、折,结合操作说清“为什么这样做”。如探究长方形面积公式时,让学生用小正方形摆一摆,说出“每行摆几个、摆几行,总面积就是几乘几”,以说理促进推理意识发展。

3. 强应用实践,让数学服务于生活

结合单元内容设计生活化作业,如测量家中客厅面积、统计家庭成员身高、计算购物费用等,让学生在生活中用数学,提升应用意识与实践能力。

新教材以场景赋能课堂、以素养导向教学,将抽象数学知识转化为可感、可悟、可探究的生活问题,真正契合三年级学生的认知规律与成长需求。作为一线三年级数学教师,要深入研读教材编排匠心,立足生活场景、依托结构化脉络、落实跨学科融合,让学生在真实情境中学习数学、建构思维、提升素养。

🌿 · 🌸 · 🌿 · 🌸 · 🌿

在今后的教学中,我将继续以新教材为抓手,以学生为中心,不断优化教学方式,让数学课堂更生动、更高效、更有育人价值,助力学生在数学学习中收获思维成长与能力提升,为后续数学学习筑牢坚实根基。

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足核心素养,

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图文:招远市罗峰学校 张永梅

编辑:长岛综试区第二实验学校 吴 琼 

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  1. CONNECT:[ UseTime:0.000957s ] mysql:host=127.0.0.1;port=3306;dbname=c_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001357s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.001031s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000552s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001354s ]
  6. SELECT * FROM `set` [ RunTime:0.005125s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001341s ]
  8. SELECT * FROM `article` WHERE `id` = 467946 LIMIT 1 [ RunTime:0.001128s ]
  9. UPDATE `article` SET `lasttime` = 1778315655 WHERE `id` = 467946 [ RunTime:0.005782s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000571s ]
  11. SELECT * FROM `article` WHERE `id` < 467946 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.003389s ]
  12. SELECT * FROM `article` WHERE `id` > 467946 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000438s ]
  13. SELECT * FROM `article` WHERE `id` < 467946 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001500s ]
  14. SELECT * FROM `article` WHERE `id` < 467946 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000683s ]
  15. SELECT * FROM `article` WHERE `id` < 467946 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000778s ]
0.166152s