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“错误”、“预设”、“情境”这些热词所引发的讨论和实践探索一直没有停止。“错误”是教学资源,但在新知建构阶段应尽量减少错误信息的干扰,重在运用正确的信息、正确的方法和经验促进学生对知识的意义建构。“预设”要全面具体,不能只是线性的而应是块状的菜单式的弹性设计。“情境”是数学知识的载体,是沟通学生的经验世界与数学世界的桥梁,必须重视通过情境引导和促进学生自主有效地理解和建构数学知识。
The discussion and practical exploration triggered by these hot words such as “Error ”, “Preset ”, “Context ” have not stopped. “Error ” is a teaching resource, but should minimize the interference of wrong information in the stage of new knowledge construction, and focus on using the correct information, correct methods and experience to promote students’ construction of the meaning of knowledge. “Preset ” To be comprehensive and specific, it should not be linear but should be a block menu-based flexible design. “Situation ” is a carrier of mathematics knowledge, is a bridge between the student experience world and the mathematics world, must attach importance to guide and promote students to understand and construct mathematics knowledge autonomously and effectively through situations.