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深圳小学“每周半天计划”丨走进兰科中心,一堂“活”的自然科学课

  • 2026-06-01 00:27:40
深圳小学“每周半天计划”丨走进兰科中心,一堂“活”的自然科学课

走进兰科中心

一堂“活”的自然科学课

深圳小学“每周半天计划”

兰花不生在土里

而是长在岩石和树干上?

一株濒危的兜兰

如何在科学家的手里“起死回生”?

近日,深圳小学五年级的学生们带着这些问题走进深圳市兰科植物保护研究中心,把“每周半天计划”的课堂搬进了兰谷深处,在真实的山石、温室和组培瓶之间,破解兰科植物的生存密码。

周五下午两点,孩子们刚踏入兰谷资源库区,就被眼前的景象颠覆了认知:“入门即入山”——兰花不是规规矩矩长在花盆里,而是附生在石壁和树干上,跟苔藓、岩石做邻居。

第一站在兰谷资源库。孩子们第一次看到石斛附生在树干和石壁上,纷纷蹲下来仔细观察,颠覆了“花必须长在土里”的固有认知。带队老师趁机抛出问题:“为什么它不长在土里?”“猜猜它靠什么喝水?”孩子们七嘴八舌的猜测里,科学探究的种子已悄然埋下。

第二站来到荫棚区。这里保育着许多野外已极危的兜兰和国兰,遮阴凉爽的环境让孩子们不自觉地放轻了脚步。他们第一次意识到,原来有些兰花比大熊猫还珍贵。

在仿野生种植区,孩子们以“它们本应长在这里”的视角,重新观察兰花的生长状态。这一环节让他们理解了迁地保护的逻辑,也学会了尊重自然。

温室是科研核心区。一排排透明的组培瓶里,密密麻麻的小苗让孩子们惊叹:“原来兰花宝宝是在‘罐罐’里长大的!”科学家从种子到成株的培育过程,在这里变得触手可及,原来从种子传播、生长到开花结实,都有着惊人的“智慧”。

体验区里,每个学生把铁皮石斛植株移植到花盆中,用松树皮和水苔做基质进行栽种,孩子们惊讶道:“原来兰科植物真不是种在土里的。”这株石斛带回家中,将成为未来一个月孩子们劳动实践,理解生命与自然规律的“活体教材”。

书签工坊同样热火朝天。孩子们用捡来的平整落叶、干燥花瓣,拼贴出一枚枚独一无二的植物标本书签。一片蕨叶、两瓣兰花残片、几笔彩绘,让科学与艺术在指尖悄悄握手。

最后一站是科普馆。从兰花的演化历程、与真菌共生的独特关系,到濒危机制和保育成果,孩子们在这里补完了最后一块拼图。“之前看到的是美,现在知道了为什么美。”从山谷到温室,从观察到动手,他们完成了一次完整的学习闭环。

深圳小学“每周半天计划”把真实世界变成教材,让孩子在行走中学习,在真实中成长。此次与兰科中心的合作,为学生们提供了一次接触科研场景的机会。学校会进一步联合更多博物馆、实验室、自然保护区等机构,继续丰富“行走的课堂”的内容形式。

这是一堂长在石头缝里、组培瓶里

也长在孩子手心里的

自然科学课

正如一名学生在任务单上写下的

“原来科学不是背出来的,是种出来的。”

文字 | 课程发展中心、陈    倩

图片 | 胡绵恒

责编 | 陈书舫

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  1. CONNECT:[ UseTime:0.001181s ] mysql:host=127.0.0.1;port=3306;dbname=c460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.002179s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000810s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000682s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001654s ]
  6. SELECT * FROM `set` [ RunTime:0.000603s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001799s ]
  8. SELECT * FROM `article` WHERE `id` = 599222 LIMIT 1 [ RunTime:0.002909s ]
  9. UPDATE `article` SET `lasttime` = 1780370625 WHERE `id` = 599222 [ RunTime:0.001649s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000781s ]
  11. SELECT * FROM `article` WHERE `id` < 599222 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001540s ]
  12. SELECT * FROM `article` WHERE `id` > 599222 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001140s ]
  13. SELECT * FROM `article` WHERE `id` < 599222 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.003278s ]
  14. SELECT * FROM `article` WHERE `id` < 599222 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.002999s ]
  15. SELECT * FROM `article` WHERE `id` < 599222 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.041874s ]
0.286616s