小学数学直观教学的运用时机

The right moment to apply direct-vision method in math teaching

直观是在教学媒体直接作用下产生的一种认知活动。因为它符合小学生“具体感知——形成表象——抽象概括”的数学学习规律 ,所以在教学中被广泛采用。作者根据教学实践并结合相关理论 ,对小学数学直观教学的有关问题做了有益的探讨 ,指出直观不是目的 ,而是手段 ,要把握时机 ,在认知衔接点、疑难突破点、规律探索点、知识深化点和思维创新点运用直观手段 ,从而有效地达成教学目标。

Direct vision refers to the cognition activity caused by direct viewing of the teaching object. As it accords with the law of math learning-which is a process of 'real perception-forming an image-abstract generalization'-of the primary students, it is widely used in the practical teaching. Combining the teaching practice and relevant theories, the writer makes some useful discussion on the direct vision method, and points out that the direct vision is not the objective but a measure. It is important to seize the right moment to apply the concerned method to cognition, problem solving, exploring the law, deepening of cognition, and creative thinking.Thus brings about an ideal teaching objective.