论文部分内容阅读
小学自然教材第十二册中有《彩虹的秘密》一课。这一课的教学目的主要是激发学生探究彩虹秘密的兴趣 ,树立探究自然奥秘的志趣。教师在教学中通过引导学生从色散实验和自制彩虹实验中观察的实验现象预测彩虹形成的原因 ,培养学生的类比推理能力和丰富的空间想象力 ,引导学生自?
Primary school natural textbook twelfth book “a rainbow of secrets” lesson. The main purpose of this lesson is to stimulate students' interest in exploring the secrets of the rainbow and to establish their own interest in exploring the natural mysteries. In the teaching, teachers guide the students to predict the causes of rainbow formation by guiding students to observe the experimental phenomena in the experiment of dispersion and self-made rainbow experiments, cultivate students' ability of analogical reasoning and rich spatial imagination, and guide students to self-