利用微课提高数学运算核心素养的实践与思考

Practice and Thoughts on Improving the Core Competence of Mathematical Operations by Using Micro-lectures

数学运算是中学生的数学核心素养之一。目前中学生普遍存在运算能力不足、运算不够仔细的问题。微课作为一种新的教学手段,具有短小精干、灵活方便的特点。文章根据梅耶学习模型及短时记忆等理论,构建了结合微课进行预习的初中数学课堂教学模式,包括通过使用微课进行预习、课前小测反馈、课堂针对性纠正提高等三步。文章还给出如何利用微课加强算理教学、构建合理的算法的模式,从这两方面提高中学生的数学运算核心素养。

Mathematical operation is one of the core mathematics qualities of middle school students.At present,middle school students generally suffer from insufficient calculation skills and insufficient calculation.As a new teaching method,micro-lecture is short,flexible and convenient.Based on Meyer's learning model and short-term memory theory,this paper constructs a middle school mathematics classroom teaching model that combines micro-lectures to preview,including three steps of using micro-lectures to preview,pre-class quiz feedback,and classroom targeted correction and improvement.The article also shows how to use micro-lectures to strengthen mathematics teaching and construct a reasonable algorithm model to improve the core competence of middle school students in mathematics.