dc.identifier.citation | Creswell, J. W.. 2012. Educational Research : Planing, Conducting, and Evaluating Quantitative and Qualitative Research 4th Ed. Pearson. Hilton dkk.. 2012. Evaluating Middle Years Students’ Proportional Reasoning. Mathematics Education: Expanding horizons (Proceedings of the 35th Annual Conference of the Mathematics Education Research Group of Australasia). Singapore: MERGA. Lamon, S. J.. 1993. Ratio and Proportion: Connecting Content and Children’s Thinking. Journal for Research in Mathematics Education, Vol. 24 No. 1 (Jan., 1993), pp 41-61. Lamon, S. J.. 2006. Teaching Fractions and Ratios for Understanding : Essential Content Knowledge and Instructional Strategies for Teachers 2nd Ed. Lawrence Erlbaum Associates. Lannin, J. K., Barker, D. D., & Townsend, B. E.. 2007. How Students View The General Nature of Their Errors. Educational Studies in Mathematics, 66:43-59. Springer. Misailidou, C. & Williams, J.. 2003. Children’s Arguments in Discussion of a “Difficult” Ratio Problem: The Role of a Pictorial Representation. Proceedings of 3rd Conference of The European Society for Research in Mathematics Education (CERME3). Bellaria, Italia. Norton, S. J. 2005. The Construction of Proportional Reasoning. Proceedings of the 29th Conference of the International Group for the Psychology of Mathematics Education, Vol. 4, pp. 17-24. Melbourne: PME. Ruiz, E. F. & Lupianez, J. L.. 2009. Detecting Psychological Obstacles to Teaching and Learning The Topics of Ratio and Proportion in Sixth Grade Primary Pupils. Electronic Journal of Research in Educational Psychology (EJREP), No. 17, Vol 7 , pp 397-424. Sarma, M. & Ahmed, M. 2013. A Study on the Difficulty of Teaching and Learning Mathematics in Under Graduate Level with Special Reference to Guwahati City. International Journal of Soft Computing and Engineering (IJSCE) ISSN: 2231-2307, Vol. 3, Issue-1. Singh, P.. 2000. Understanding the Concepts of Proportion and Ratio Constructed by Two Grade Six Students. Educational Studies in Mathematics, Vol. 43, No,3, pp. 271-292. Tjoe, H. & Torre, J.D.L.. 2013. Designing Cognitively-Based Proportional Reasoning Problems as an Application of Modern Psychological Measurement Models. Journal of Mathematics Education, December 2013, Vol. 6, No. 2, pp. 17-26. | in_ID |