The lack of Indonesian students achievement in the international assessment is due to several factors. Students are not familiar with the problems requiring reasoning, in particular the proportional reasoning. This research aims to identify the distribution and the Level of Cognitive Demands (LCD) of the proportional reasoning problems found in the Year 7 and Year 8 mathematics textbooks based on the 2013 curriculum (revised edition 2014). The data collection was conducted by identifying the proportional reasoning problems found in the whole chapters of the textbooks which are then analysed and classified using the Smiths and Stein’s criteria of LCD (1998). The results reveal that the proportional reasoning problems were only found in the three of 17 chapters namely ratio and proportion, rectangle and triangle, and Pythagorean Theorem, which represent different LCD including Lower-LCD (Low-M and Low-P) and Higher-LCD (High-P). Out of 69 proportional reasoning problem found in the textbooks, the percentage of higher-LCD problems (n=29 ; 42.03%) is less than lower-LCD (n=40;57.97%). In addition, the higher-LCD problems found were only the high-P type. None was found to meet the requirement of High-DM demanding students to conduct ‘doing mathematics’, complex approach and self-monitoring or self regulation of students’ cognitive process. It is recommended that the proportional reasoning problems, including some High-DM problems, should be provided in each topic in Indonesian mathematics textbooks.DOI: http://dx.doi.org/10.22342/jme.9.1.4145.55-68
| Journal Name | Journal on Mathematics Education (JME) |
| Published by | Universitas Sriwijaya |
| Contact Email | - |
| Contact Phone | - |
| Contact Name | - |
| Location | Kab. ogan ilir, Sumatera selatan INDONESIA |
| Website | jme| https://ejournal.unsri.ac.id/index.php/jme| |
| ISSN | ISSN : 20878885, EISSN : 24070610, DOI : -, |
| Core Subject | Education, |
| Meta Subject | Education, Mathematics, |
| Meta Desc | Journal on Mathematics Education (IndoMS-JME) is peer-refereed open-access international journal which has been established for the dissemination of state-of-the-art knowledge in the field of mathematics education. This journal is founded under collaboration between Indonesian Mathematical Society and Sriwijaya University. Starting from 2019, IndoMS-JME would be published three times in a year (January, Mei, and September). |
| Penulis | Johar, Rahmah , Yusniarti, Sri , Saminan, Saminan |
| Subtitle Article | Journal on Mathematics Education Vol 9, No 1 (2018) |
| Publisher Article | Department of Doctoral Program on Mathematics Education, Sriwijaya University |
| View Article | https://ejournal.unsri.ac.id/i… |
| Scholar Google | http://scholar.google.com/scholar?q=%2Bintitle%3A&… |
| DOI | https://doi.org/10.22342/jme.9.1.41… |
| DOI Number | DOI: 10.22342/jme.9.1.4145.55-68 |
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