基于实践教学困惑的数学职前教师MPCK的培养

Training MPCK of Mathematics Pre-service Teacher based on the Practice Teaching Perplexity

通过分析试教、说课和实习总结,发现职前教师在实践教学中感到困惑和困难的事件主要有:如何挖掘数学思想方法并用于数学教学、数学教学中如何融入数学史、如何设计问题串和问题情境、如何确定教学重难点和解决的关键、怎样设计教学目标等,这些均与职前教师缺乏MPCK有关。基于此,应从以下几个方面培养职前教师的MPCK:一是培养职前教师的数学阅读能力,二是培养职前教师的教学研究能力,三是通过数学试教、说课、说题、教育实习加强职前教师的二次转化能力。

By analyzing pre--service teachers＇ personal summary of trial teaching, talking classes and educational practice, we found the events that pre-service teachers feel confused and difficult in practice teaching such as how to excavate the mathe- matics thinking method and use for mathematics teaching, how to integrate the history Of mathematics in mathematics teaching ,how to design problem situations and a list of questions, how to determine important and tough points in teaching and key problem of need solution, how to design the teaching objectives, etc. which are related to pre-service teachers lack MPCK. Based on this, we should foster pre--service teachers MPCK from the following aspects： （1）training mathematics reading ability of pre-service teachers; （2）training teaching and research capacity of pre--service teachers; （3）strengthen the two transforma- tion ability of pre -service teachers by means of mathematical trial teaching, talking classes, explaining problem and educational practice teaching.