3Booth R,Thomas M.Visualization in Mathematics Learning:Arithmetic Problem-solving and Student Difficulties [J].Journal of Mathematical Behavior,2000,18(2):169-190.
4Lowrie T,Kay R.Relationship between Visual and Nonvisual Solution Methods and Difficulty in Elementary Mathematics [J].The Journal of Educational Research,2001,94(4):248-255.
5Mary Anne,Gallagher Landi.Helping Students with Learning Disabilities Make Sense of Word Problems [J].Intervention in School and Clinic,2001,37(1):13-18.
6Presmeg N C,Balderas-Canas P E.Visualization and Affect in Nonroutine Problem Solving [J].Mathematical Thinking and Learning,2001,3(4):289-313.
7Hegarty M,Kozhevnikov M.Types of Visual-spatial Representations and Mathematical Problem Solving [J].Journal of Educational Psychology,1999,91(4):684-689.
8Kozhevnikov M,Hegarty M,Mayer R E.Revising the Visualizer-vervalizer Dimension:Evidence for Two Types of Visualizers [J].Cognition and Instruction,2002,20(1):47-77.
