《数学课程标准(2011)》明确指出“学生自己发现和提出问题是创新的基础”。课堂教学中,我们应该积极创设让学生提出问题的机会。可是,在实际教学中,如果我们的情境足够开放,学生就会提出许许多多问题。有预设之内的,也一定有预设之外的;有的切合教学目标,有的与教学目标相距甚远。那么,面对“一 The Mathematics Curriculum Standard (2011) clearly states that ”students discover and ask questions themselves are the basis of innovation.“ In class teaching, we should actively create opportunities for students to ask questions. However, in actual teaching, students may ask many questions if our situation is sufficiently open. There are presets, there must be pre-set outside; some meet the teaching objectives, and some far from the teaching objectives. So, face ”one