美国小学科学课堂教学的有效性解读

The Interpretation of the Effectiveness of U.S. Elementary Science Teaching

美国小学科学课堂教学高度关注教学时效、教师教学行为和教学决策。这给我国课堂教学如下启示：有效教学应转向价值评估，强化教师教学信念系统的专业发展，教学操作层面应重视学习材料的结构化，在科学探究中强化对话和反思，促进学生的理解性学习和“跬步式”发展。

From the perspectives of the teaching observation and meaning analysis, we use za.L^l,~. elementary science teaching classroom videos to analyse the effectiveness of teaching, teaching behavior, and teaching decision-making. Based on the analysis, we point out that effective teaching should turn to the value assessment, emphasize teachers＇ professional development, attach importance to the structure of learning materials in the teaching process, strengthen the discourse and reflection in the scientific inquiry process, and promote students＇ understanding of science as well as ＂step by step＂ development.