科学课是一门比较年轻的学科,特别是对于师资匮乏的广大农村教师而言更是如此。大部分科学教师不是专职的,他们是由语文、数学教师兼任的,繁重的教学任务使得他们在《科学》领域的探索较为有限,导致课前的知识筹备不足,在课堂上无法满足学生对科学知识的探究需要。案例:三年级上册《水》教学片段 Science classes are a relatively young subject, especially for the vast majority of rural teachers who are underrepresented. Most science teachers are not full-time teachers. They are both language teachers and mathematics teachers. The heavy teaching tasks make their exploration in the field of “science” more limited, which leads to lack of knowledge preparation before class and can not meet the needs of students in science Knowledge needs to be explored. Case: Third grade on the “water” teaching fragment