小学《科学课程标准》指出“科学学习要以探究为核心,探究既是科学学习的学习目标,又是科学学习方式。亲身经历以探究为主的学习活动是学生学习科学的主要途径”。作为一线的科学教师正在积极地实践着这一基本理念。实施以探究为核心的科学学习活动,使学生获得了大量的活动时间与空间,活动热情高涨。但是我们组织学生的探究活动常常会出现失控现 The standard of science curriculums in primary schools pointed out that “science learning should take inquiry as the core, inquiry is both the learning goal of science learning and the way of scientific learning, and the first-of-its-kind learning activities are the main ways for students to learn science.” As a front-line science teacher, we are actively implementing this basic concept. The implementation of inquiry-centered science learning activities enables students to gain a large amount of time and space for activities, and enthusiasm for the activities is rising. However, we organize student inquiry activities often out of control