拓展学生的探究空间是每个科学教学工作者投身于科学课实践研究的责任。笔者在实践中经过研究发现,有结构的探究材料是拓展探究空间的保障,明确的探究任务是拓展探究空间的前提,充足的探究时间是拓展探究空间的基础,留下想象的空间是拓展探究空间的外延。 Expansion of students’ inquiry space is the responsibility of every science teacher to devote himself to the practical study of science class. In practice, the author has found that the structured inquiry materials are the guarantee to expand the inquiry space, the clear inquiry task is the premise to expand the inquiry space, the sufficient inquiry time is the basis for expanding the inquiry space, and the space left for imagination is to expand the inquiry Extension of space.