科学探究用的材料是由教师提供或学生收集供科学学习的物质基础。那么,科学课中教师应向学生提供怎样的材料?何谓“有结构的探究材料”?下面以两案例入手,对材料的“结构性”进行诠释。案例一:浙江省湖州市南浔实验小学的沈跃群老师在2001年4月上《水的浮力》这一课,他向学生提 The material used for scientific inquiry is the material basis provided by teachers or collected by students for scientific learning. So, what kind of material should teachers provide to students in science class? What is “structured inquiry material?” Let's start with two cases to explain the “structure” of materials. Case 1: Shen Yuequn, a teacher from Nanxun Experimental Primary School in Huzhou City, Zhejiang Province, gave a lecture on “buoyancy of water” in April 2001