Abstract
The lower mathematical reasoning abilities of elementary school students are the background of this research. This happens because students have not been properly facilitated to develop the ability mathematical of reasoning. Mathematics learning can develop reasoning ability well because mathematics learning has systematic concepts and conceptual relationships. This will have an impact on logical, systematic and rational ways of thinking. Therefore, teachers must be able to choose learning models that can facilitate the ability of mathematical reasoning. One learning model that can be used is the literacy project-based learning model. This study aimed to determine the effectiveness of improving the ability of mathematical reasoning students who obtain literacy project-based learning. The design of this research was used pretest-posttest non-equivalent control group. Based on research results, conclusions can be drawn about the effectiveness of learning that includes n-gain, minimum completeness criteria, and mastery learning. Literacy project-based learning has been effective in facilitating reasoning abilities. That is because literacy project-based learning can present contextual material with literacy works that are made and invited to carry out the process of thinking about the use of mathematical contexts in daily life. Furthermore, students can connect mathematical material with real-life contexts and can make reasoning to interpret learning well.
Highlights
In the 21st century, the development science and technology demanded to able to think a high level that includes the critical, logical, creative. Trilling and Fadel (2009) stated education in century 21st focuses on four competencies, namely the ability to understand the higher, the ability to think critically, the ability to collaborate, and the ability to communicate.The situation of students in Indonesia inversely proportional to the demands of the century to the 21st
The competencies students in Indonesia is still very low. It based on results of Trends in International Mathematics and Science Study (TIMSS) in the year 2015 which shows the results of tests Indonesian students still were in position four bottom (IEA's Team, 2015)
Results in the TIMSS on to explain that elementary school students in Indonesia are still very low in the ability of reading comprehension in the field of science and mathematics, as well as the ability to solve problems that relate to the context of life every day
Summary
In the 21st century, the development science and technology demanded to able to think a high level that includes the critical, logical, creative. Trilling and Fadel (2009) stated education in century 21st focuses on four competencies, namely the ability to understand the higher, the ability to think critically, the ability to collaborate, and the ability to communicate.The situation of students in Indonesia inversely proportional to the demands of the century to the 21st. In the 21st century, the development science and technology demanded to able to think a high level that includes the critical, logical, creative. Trilling and Fadel (2009) stated education in century 21st focuses on four competencies, namely the ability to understand the higher, the ability to think critically, the ability to collaborate, and the ability to communicate. The situation of students in Indonesia inversely proportional to the demands of the century to the 21st. The competencies students in Indonesia is still very low. It based on results of Trends in International Mathematics and Science Study (TIMSS) in the year 2015 which shows the results of tests Indonesian students still were in position four bottom (IEA's Team, 2015). The results of tests that showed that student elementary school in Indonesia is still less well within the ability of mathematics
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