Development Of Pupils’ Relative Thinking In Solving Proportional Reasoning Problems Through Comparison Tasks
| Main Authors: | Satiti, Wisnu.Siwi , Zulkardi, Zulkardi, Hartono, Yusuf, Galen, Frans van |
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| Format: | Proceeding PeerReviewed application/pdf |
| Terbitan: |
, 2014
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| Subjects: | |
| Online Access: |
http://eprints.unsri.ac.id/5239/1/Wisnu_Siwi_Satiti.pdf http://eprints.unsri.ac.id/5239/ |
Daftar Isi:
- The concept of proportions is not only fundamental to educational topics, but it is also essential for everyday competence. However, proportional reasoning is difficult for many pupils, even it is not easy for adults. Pupils often find it hard to determine an appropriate reasoning to be used in a certain situation. One common error that many pupils should encounter is the misuse of absolute comparison in situation requiring relative comparison. Many pupils compare the situations in partial way without recognizing relative relationship between data. They tend to compare the absolute value instead of considering the proportional relationship of data. In order to support the development of pupils’ relative thinking in solving proportional reasoning problems, we designed a series of learning activities involving comparison tasks. Moreover, the present study is aimed to contribute to developing a local instruction theory about the domain. Consequently, design research is chosen as an approach to achieve the research aims. In addition, we designed the teaching-learning activities based on the tenets of Pendidikan Matematika Realistik Indonesia (PMRI) that was adapted from Realistic Mathematics Education (RME). The paper focuses on the first cycle of the study involving nine pupils of 5th grade elementary school. The findings on learning experiment shows that comparison tasks may promote pupils’ relative thinking in solving proportional reasoning problems