【聚焦课堂】《富饶的西沙群岛》(人教版三上第六单元)按“总分总”的结构,具体形象地介绍了西沙群岛的瑰丽风光和富饶的物产。其中写海底之鱼的第4自然段又是文中典型的“总分总”段落。基于“学为中心”“在语言文字中走一个来回”以实现“一课一得”的教学理念,一位教师锁定这一自然段作了如下教学:(在整体感知、厘清课文脉络后) Focus Class】 【“rich Xisha Islands” (PEP 3 sixth unit) according to “total score total ” structure, a detailed image of the Xisha Islands magnificent scenery and rich products. The fourth paragraph of the natural sea fish written in it is the typical “total score” paragraph. Based on the teaching concept of “learning as the center ” “going back and forth in the language and writing ” in order to achieve “one class one get one ”, a teacher locked the natural segment and taught as follows: , To clarify the text context)