一、存在的问题侧重于结构、解题思路和做题程序,至于是否符合实际、题目里的数据是从哪里来的、解决一个问题需要什么数据、怎样得到这些数据,在设计中则很少考虑。例如,有些应用题的设计仍然是“修一条水渠……加工一批零件……”等严重脱离学生生活实际的应用题,学生既不知所学的数学从何而来,更不知将走向何处。反映在教学上,除了让学生在反复的机械训练中获得一些解题技能外,一旦面临真实的、源于生活的问题情境,往往束手无策。例如,当买个东 First, the existing problems focus on the structure, problem-solving ideas and problem-solving procedures, as to whether the actual situation, where the data comes from, to solve a problem what data is needed, how to get these data, the design is very small consider. For example, some applications are still designed to solve the practical problems of being severely separated from students’ life, such as “drafting a water canal ... processing a batch of parts ... ”. Students neither know where the math came from, where. Reflected in teaching, in addition to repeated mechanical training students get some problem-solving skills, once faced with real, life-based problem situations, often helpless. For example, when buying an East