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Design Research on Ratio and Proportion Learning by Using Ratio Table and Graph with Oku Timur Context at 7th Grade

This research was motivated by several studies which show that students have difficulties in understanding the material ratio, wherein one contributing factor is the lack of ability in proportional reasoning. The purpose of this study is to produce a trajectory of learning to help students develop abilities in comparison reasoning. Solution strategies in this study were the ratio tables and graphs using PMRI approach (Indonesian Realistic Mathematics Education) with OKU Timur context. This research was conducted in MTs Subulussalam 2 Sriwangi Ulu OKU Timur. The method used was design research with three stages, those are the preliminary experiment, design experiment, and retrospective analysis. At the preliminary experiment, researchers designed the Hypothetical Learning Trajectory (HLT). At the design experiment, HLT tested on students to develop informal knowledge into a formal knowledge of mathematics through activities. The trial results were analyzed in a retrospective analysis phase so that the trajectory of learning or Learning Trajectory (LT) resulted.DOI: http://dx.doi.org/10.22342/jme.8.2.3969.211-222
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Improving Mathematics Achievement of Indonesian 5th Grade Students Through Guided Discovery Learning

This research aims to find information about the improvement of mathematics achievement of grade five student through guided discovery learning. This research method is classroom action research using Kemmis and Taggart model consists of three cycles. Data used in this study is learning process and learning results. Learning process data is obtained by check list and is descriptive analyzed. Learning results data is obtained by conducting test and is analyzed by simple statistics. The result shows that student's ability of observation, discussion and knowledge acquisition are improved with guided discovery learning. Hence, guided discovery learning improves students' mathematics learning outcomes.
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Examining of Model Eliciting Activities Developed by Mathematics Student Teachers

The purpose of this study is to examine the model eliciting activities developed by the mathematics student teachers in the context of the principles of the model eliciting activities. The participants of the study conducted as a case study design were twenty one mathematics student teachers working on seven groups. The data collection tools were the developed model eliciting activities and semi-structured interviews. The model eliciting activities and the transcriptions of the interviews were deeply analyzed based on the principles. The results showed that while one group's activity was not a model eliciting activity, the ones of two groups were appropriate to the all principles. Other model eliciting activities were completely or partly appropriate to the principles. It was seen that the reality and model construction principles were binding role in developing these activities. The self-assessment and construct documentation principles were directly related to each other. The construct share ability and reusability, and effective prototype principles were the principles which were associated with the others and could be elicited effectively by tracking future implementations.DOI: http://dx.doi.org/10.22342/jme.8.2.3997.223-242
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Professional Development of Pmri Teachers for Introducing Social Norms

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Development a Constructivist Module and Web on Circle and Sphere Material with Wingeom Software

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Structured Arrangement Supporting the Development of Splitting Level in Doing Multiplication by Number Up to 20

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Professional Development of Pmri Teachers for Introducing Social Norms

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Structured Arrangement Supporting the Development of Splitting Level in Doing Multiplication by Number Up to 20

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