在儿童科学探究过程中,变量的确定与控制,是科学性的重要体现。但是一些教师缺乏控制实验变量的意识和能力,给儿童探究带来困惑和障碍,那么教师如何准确地控制实验过程中的变量,做到让儿童有效地探究?本文通过对教师在开展实验设计时存在的困难进行剖析,并针对困难做出应对策略。 In the process of children’s science inquiry, the determination and control of variables is an important manifestation of science. However, some teachers lack the awareness and ability to control experimental variables and bring confusion and obstacles to children’s inquiry. How can teachers control the variables in the experiment accurately so that children can effectively explore? In this paper, The existing difficulties to analyze and make coping strategies for the difficulties.