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P. Sarjiman
State University of Malang
Education

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PENINGKATAN PEMAHAMAN RUMUS GEOMETRI MELALUI PENDEKATAN REALISTIK DI SEKOLAH DASAR P. Sarjiman
Jurnal Cakrawala Pendidikan No 1 (2006): Cakrawala Pendidikan, Februari 2006, Th. XXV, No.1
Publisher : LPMPP Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/cp.v0i1.393

Abstract

AbstractThe classroom action research was carried out in order to : (1) make students easier in understanding geometrical formulas; (2) raise the students achievement about geometrical formula understanding and its application especially in the case of plane area. : (3) motivate the students to understand geometrical formulas; and (4) make the teaching-learning of understanding geometrical formulas would be more effective.The research was carried out at the fith grade of state elementary school called Terbantaman II in Depok Sleman Yogyakarta. The Researchwas carried out in three cycles with each sycle consisting of planning, actuating , observing and reflecting. The research data were collected by instruments namely the achievement test, observation and interview. Quantitative data were analysed by descriptive statistics; that was by searching for the mean and by a test of difference, where as qualitative data were analysed by an interpretative descriptive.The research finding showed that the teaching of the plane area formulas of rectangulars and triangles by realistic approach could raise the students eagerness and motivation in learning , understanding as well as applying the plane area. It could be concluded that the teaching method applied could raise students achievement in learning the plane area formula especially rectangulars and triangels. In othe words, the teaching of geometrical formulas by realistic approach could raise the students understanding about geometrical formulas.Key words: Understanding geometrical formulas, realistic approach, and the elementary school.
PENINGKATAN KEMAMPUANSISWASD DALAM MENYELESAlKAN SOALMATEMATIKABENTUKCERITA P. Sarjiman
Jurnal Cakrawala Pendidikan No 1 (2005): Cakrawala Pendidikan, Edisi Februari 2005, Th. XXIV, No.1
Publisher : LPMPP Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (8686.641 KB) | DOI: 10.21831/cp.v0i1.4675

Abstract

The main porpuse of this action research was to: (I) improve the elementary school students' understanding about the content ofstory fonn mathematical problems, (2) improve the elementary students' ability in solving story fonn mathemaiical problemS by right understanding the content ofthe story and right stated steps. This research was carried out at the fifth grade ofTegalrejo II Elementary School in Yogyakarta.· The research was carried out in three cycles; with each cycle consisted ofplanning, actuating, observation and reflection. The research data were collected by achievement tests, observation andinteviews. The quantitative data were analyzed by descriptive statistics, that were by finding the mean and carrying out t test;. where as qualitative data were analyzed by interpretative description. The reSearch finding showed thatthe descriptive statistic analysis resulted the improvement ofthe achievement tests result from the first action to the next action significantly. Only the first test result had not showed the improvement significantly. The qualitative analysis result also showedthat the students were relatively eagerer,· motivated and interested in the first action up to the next action in solving the story form mathematical problems. In the third cycle (the last cycle), at the component ofeagerness, enjoyement and easiness in understanding, showedthat the result was in the very goodcategory. In otherwords, students were relatively quicker in solving the story form mathematical problems by understanding the content ofthe story with given stated steps.
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