Mathematics Problem Solving 5-Level with TI-92
                    
                      Yue Zhong Wu  
                      wuyzh@scnu.edu.cn 
  Department of Mathematics  
  South of China Normal University  
  Code 510631 Guang Zhou Guang Dong  
  China 
  
                     
                    Abstract
                     Making use of a famousb problen,we divide problem solving level with graph calculator and point out the character in every level.these level can help teacher to recognise the situation of students and teacher use these informations to design his didactical methods.  
                     
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