在应用题教学中,加强一题发展、一题多变的训练,有利于学生灵活运用所学知识,培养、提高学生的逻辑思维能力和分析问题解决问题的能力。如: 例加工一批零件,师傅单独做需6小时才能完成,徒弟单独做需12小时才能完成,师徒二人合做几小时可以完成? 这是一道典型的工程问题,学生很容易找到数量关系,列出算式:1÷(1/6+1/12)。在此题的基础上,我不断变化条件和问题,逐步加深难度,提高学生的解题能 In the application of teaching, strengthening the development of a problem, a changeable training, is conducive to students to use their knowledge, training, improve students' logical thinking ability and analyze the problem solving ability. Such as: cases of processing a batch of parts, the master alone to do 6 hours to complete, apprentice alone need 12 hours to complete, mentoring and duo hours can be completed? This is a typical engineering problem, students can easily find the quantity Relationship, list the formula: 1 ÷ (1/6 + 1/12). On the basis of this question, I constantly change the conditions and problems, and gradually deepen the difficulty and improve students' problem solving