Georgius Rocki Agasi, Georgius Rocki
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JUNIOR HIGH SCHOOL STUDENTS’ ABILITY TO APPLY ALGEBRA IN REAL-WORLD PROBLEMS Agasi, Georgius Rocki; Wahyuono, Yakobus Dwi; Rudhito, Marcellius Andy
International Journal of Indonesian Education and Teaching (IJIET) Vol 1, No 2 (2017)
Publisher : Sanata Dharma University Yogyakarta

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Abstract

In accordance with the 2013 curriculum that uses Scientific Approach where students learn using the 7M method (Observing, Questioning, Trying, Gathering Information, Reasoning, Concluding, and Communicating), the real problem is a tool which is considered fairly important to be used in learning. Mathematical modeling is an approach in which students bring real problems into mathematical problems. Algebra is an important tool used in modeling a real problem into a mathematical problem. Students are asked to observe the environment around them and then asked to make their mathematical model in an algebraic form. The subjects in this study were 21 eighth-grade students of Pangudi Luhur Junior High School in Srumbung, Magelang, Central Java, Indonesia. This research uses Qualitative Approach. The result of this study found that most students are able to create algebraic forms from the environment they have observed, but there are still difficulties. Some groups still need quite a lot of help from teachers but some also need a little help from teachers.
PENGGUNAAN MATEMATIKA REALISTIK UNTUK MENINGKATKAN DISPOSISI MATEMATIS SISWA SMP Puspitawati, Vincentia Septi; Agasi, Georgius Rocki
KALAMATIKA Jurnal Pendidikan Matematika Vol 2, No 2 (2017): KALAMATIKA November 2017
Publisher : FKIP UHAMKA

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Abstract

The problem of mathematics learning often happens in mathematics teaching that seems far from the real problem. Realistic mathematics learning can help students to understand about mathematics concepts that abstract for them. If the teachers use real context in mathematics learning, students will be more attracted and interested. The purpose of this research is to look at the effect of realistic mathematics learning towards students mathematical disposition. The method of this research is descriptive quantitative. The subjects were 35 students of SMP N 14 Yogyakarta grade 7 and this research held in one month. The instrument is students mathematical disposition scale questionnaire. The students fill the questionnaire before and after they are given a treatment. The result of the questionnaire was analyzed using descriptive statistics, by looking at the average before and after treatment and categorized according to the average value. Based on the results of the descriptive statistical analysis showed that an average of students’ mathematical disposition has increased. The average value of students in pre-treatment is 96.02 with the medium category and then after treatment is given to the 109.44 with the high category