2Cai J. Why Do U S and Chinese Students Think Dif- ferently in Mathematical Problem Solving? Impact of Early Algebra Learning and Teachers' Beliefs [J]. Journal of Mathematical Behavior, 2004, 23 (2) : 135--167.
3Cai J, Moyer J. Developing Algebraic Thinking in Earlier Grades: Some Insights from International Comparative Studies [C] //C E Greenes, R Ruben- stein. Algebra and Algebraic Thinking in School Mathematics: Seventieth Yearbook. Reston, VA: NCTM, 2008 .. 169 180.
4Tillema E S. Chinese Algebra.. Using Historical Problems to Think About Current Curricula [J]. Mathematics Teacher, 2005, 99 (4).. 238--245.
5National Council of Teachers of Mathematics (NCTM). Principles and Standards for SchoolMathematics [S]. Reston, VA.. NCTM, 2000.
6National Governors Association Center for Best Prac- tices, Council of Chief State School Officers. Common Core State Standards for Mathematics [S]. National Governors Association Center for Best Prac- tices, Council of Chief State School Officers, Wash- ington D C, 2010.
7Stiff L V, Johnson J L , Johnson M R. Cognitive Is- sues in Mathematics Education [C] ff Wilson P S. Research Ideas for the Classroom: High School Mathematics. New York: Macmillan Publishing Company, 1993: 3--20.
8National Mathematics Advisory Panel. Foundations for Success: The Final Report of the National Mathematics Advisory Panel [R]. U S, Department of Education, 2008.