“问题解决”教学体现知识问题化与问题解决知识化的思想,以问题构筑教学的主题,以主题体现教学的精髓,问题式教学有赖于教师对知识的活化,有赖教师对问题情境的创设以及对问题的呈现方式,问题式教学侧重于意义性教学与对象性教学.在教学过程中,笔者以“问题串”的形式来体现“ Problem-solving teaching embodies knowledge problem and problem solving knowledge-based thought, constructs the theme of teaching by question, and reflects the essence of teaching by theme. Question-based teaching relies on teacher’s activation of knowledge, relies on teacher’s creation of problem situation and In the process of teaching, the author regards “problem string” as a form to reflect the "