Endah Retnowati
Department of Mathematics Education, Universitas Negeri Yogyakarta

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EFEKTIVITAS STRATEGI PENGELOMPOKAN BERPASANGAN DALAM PEMBELAJARAN MATEMATIKA MODEL CORE Endah Retnowati; Aqiila Aqiila
Jurnal Cakrawala Pendidikan CAKRAWALA PENDIDIKAN EDISI FEBRUARI 2017, TH. XXXVI, NO. 1
Publisher : LPMPP Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1266.65 KB) | DOI: 10.21831/cp.v35i1.12628

Abstract

Abstrak: Penelitian ini bertujuan untuk menguji keefektifan pembelajaran CORE (Connect, Organize, Reflect, Extend) pada pembelajaran geometri transformasi dengan strategi pengelompokan yang berbeda ditinjau dari kemampuan penalaran, prestasi, dan self efficacy. Penelitian ini merupakan penelitian eksperimen semu dengan populasi siswa kelas XI IPA SMA yang baru pertama kali mempelajari materi geometri transformasi. Sampel penelitian sebanyak dua kelas masing-masing terdiri atas 40 siswa. Siswa belajar dengan dikelompokkan secara berpasangan atau kelompok kecil. Data dikumpulkan dengan teknik tes dan nontes serta dianalisis dengan teknik statistik deskriptif dan inferensial (Manova). Hasil penelitian menunjukkan bahwa pembelajaran CORE strategi berpasangan maupun kelompok kecil efektif ditinjau dari Kriteria Ketuntasan Minimum kemampuan penalaran, prestasi dan self efficacy yang ditetapkan, tetapi tidak terdapat perbedaan yang signifikan di antara kedua strategi pengelompokan tersebut. Repeated measures analysis of variance menunjukkan bahwa kompleksitas materi pembelajaran memengaruhi prestasi belajar secara signifikan. Semakin kompleks materi pembelajaran, penggunaan strategi kelompok kecil lebih baik daripada berpasangan. Kata kunci: CORE, kemampuan penalaran, prestasi belajar, self efficacy THE EFFECTIVENESS OF DYAD STRATEGY DURING MATHEMATICS LEARNING BASED ON CORE MODEL Abstract: The purpose of this study is to test the effectiveness of an instruction, namely CORE (Connect, Organize, Reflect, Extend) model, for learning geometry transformation in different grouping strategies (by dyads and small-group work), in terms of reasoning ability, achievement, and self-efficacy. This study was a quasi-experimental research with the entire population of science 11th graders who were novices in geometry transformation. The research samples were two classes which respectively consist of 40 students. Students learned all material either in dyads or small groups.The results showed that CORE instruction model with dyads or small-group work strategies was effective in relation to students’reasoning ability, achievement, and self-efficacy. There was no significant difference between the two grouping strategies. The following repeated measured analysis of variance showed that complexity of learning material significantly affected learning achievement. It is concluded that when the learning material is high in complexity, learning it in small group is better than doing it in dyads. Keywords: CORE, reasoning ability, achievement, self-efficacy
Pengembangan perangkat pembelajaran geometri berbasis kecerdasan majemuk siswa SMP kelas VIII Pasttita Ayu Laksmiwati; Endah Retnowati
PYTHAGORAS Jurnal Pendidikan Matematika Vol 14, No 1: June 2019
Publisher : Department of Mathematics Education, Faculty of Mathematics and Natural Sciences, UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (636.379 KB) | DOI: 10.21831/pg.v14i1.26591

Abstract

Penelitian ini bertujuan untuk menghasilkan dan mendeskripsikan proses pengembangan dan kualitas perangkat pembelajaran geometri berbasis konsep kecerdasan majemuk dari Howard Gardner. Penelitian pengembangan ini mengadopsi model pengembangan Plomp terdiri dari tahapan penelitian awal, pengembangan, dan evaluasi. Perangkat pembelajaran geometri yang dikembangkan meliputi rencana pelaksanaan pembelajaran, buku, dan lembar kerja siswa untuk materi Geometri Kelas VIII Semester 2 berbasis kecerdasan majemuk. Kualitas hasil pengembangan ditinjau dari tiga aspek yaitu kevalidan, keefektifan, dan kepraktisan. Berdasar­kan penilaian kualitas kevalidan, diperoleh bahwa perangkat mendapatkan kriteria sangat baik. Hal ini terjadi karena perangkat yang dikembangkan sesuai dengan indikator pembelajaran dan prinsip pembelajaran berbasis kecerdasan majemuk. Aspek keefektifan didasarkan pada pencapaian prestasi belajar siswa dan self-esteem. Keefektifan produk berdasarkan prestasi belajar diperoleh dari persentase banyaknya siswa yang mencapai Kriteria Ketuntasan Minimal (KKM) sebesar 75, dimana diketahui terdapat 82,05% siswa mencapai KKM. Keefektifan juga ditinjau dari self-esteem siswa, dimana setelah pembelajaran self-esteem siswa berada pada level tinggi. Sementara itu, respon siswa dan guru terhadap kepraktisan penggunaan perang­kat masing-masing adalah sebesar 4,175 (diklasifikasikan praktis) dan 4,625 (diklasifikasikan sangat praktis). Berdasarkan hasil observasi terhadap pembelajaran diketahui bahwa keter­laksanaan pembelajaran adalah sebesar 96,82% (di kelas A) dan 97,61% (di kelas B), sehingga pembelajaran terlaksana dengan baik sesuai dengan rencana. Oleh karena itu, berdasarkan hasil penelitian tersebut, dapat disimpulkan bahwa perangkat pembelajaran geometri yang dikembangkan layak untuk digunakan. The Development of Geometry Learning Kit Based on Multiple Intelligences for 8th Grade Students of Junior High SchoolAbstractThis study aimed to produce and describe the development process and quality of geometry learning kit based on multiple intelligences from Howard Gardner. This study adopted Plomp’s model of research design, consisting of preliminary research, developing, and evaluation. As a result, this research was developed learning kit, which includes lesson plans, a handbook, and worksheets of geometry for 8th graders 2nd semester. The quality of the developed instructions was described by its validity, effectiveness, and practicality aspect. The effectiveness of the product based on learning achievement was obtained from the percentage of the number of students who reach the Minimum Completeness Criteria (MCC), which was 75, where it was known that there were 82.05% of students achieving the MCC. The other effectiveness result can be seen from students’ self-esteem, after following the learning designed, it has a mean score with high classification. The students’ and teacher’s response was 4.175 (can be categorized practical) and 4.625 (categorized very practical), respectively. The result of learning observations showed that the percentage of the implementation learning was 96.82% (class A) and 97.61% (class B), so it can be seen that the learning process was taking place. Thus, the result of the study shows the learning kit was appropriate to be used.