Articles

Found 8 Documents
Search

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | 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 Laksmiwati, Pasttita Ayu; Retnowati, Endah
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 | 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.
PENGEMBANGAN BAHAN AJAR GEOMETRI SMP BERBASIS COGNITIVE LOAD THEORY BERORIENTASI PADA PRESTASI BELAJAR SISWA Pangesti, Fitraning Tyas Puji; Retnowati, Endah
Pythagoras: Jurnal Pendidikan Matematika Vol 12, No 1: June 2017
Publisher : Department of Mathematics Education, Faculty of Mathematics and Natural Sciences, UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/pg.v12i1.14055

Abstract

Penelitian ini bertujuan untuk menghasilkan bahan ajar geometri SMP berbasis Cognitive Load Theory (CLT) serta mendeskripsikan kualitas kevalidan, kepraktisan dan keefektifan bahan ajar tersebut. Bahan ajar yang dikembangkan berupa buku pengayaan geometri untuk SMP kelas VII dan VIII sesuai dengan Kurikulum 2006. Jenis penelitian ini adalah penelitian kualitatif dengan menggunakan model penelitian desain dari Plomp yang terdiri atas tiga tahap: preliminary research, prototyping phase, dan assessment phase. Subjek coba terdiri dari 32 siswa kelas VII dan 32 siswa kelas VIII dari dua SMP Negeri di Kabupaten Wonosobo, beserta masing-masing satu guru matematika dari sekolah tersebut. Subjek coba yang menggunakan bahan ajar ini telah menguasai kompetensi dasar pembelajaran. Penelitian ini menghasilkan bahan ajar geometri SMP berbasis CLT yang memenuhi aspek kevalidan, kepraktisan dan keefektifan. Hasil evaluasi formatif 1 menyatakan bahwa bahan ajar yang dikembangkan memenuhi kriteria valid. Hasil evaluasi formatif 2 dan evaluasi sumatif menyatakan bahwa bahan ajar memenuhi kriteria praktis. Keefektifan bahan ajar terlihat dari hasil penilaian prestasi belajar yang menunjukkan bahwa persentase siswa kelas VII yang mencapai KKM adalah 78% dengan rata-rata nilai klasikal 78 dan persentase siswa kelas VIII yang mencapai KKM adalah 75% dengan rata-rata nilai klasikal 80. Secara keseluruhan, hasil penelitian menunjukkan bahwa bahan ajar yang dikembangkan layak digunakan.Kata Kunci: bahan ajar, pengayaan, geometri SMP, Cognitive Load Theory.  Developing Geometry Learning Materials for Junior High School Based on Cognitive Load Theory with Regard to Student?s Achievement AbstractThis study was aimed to develop a geometry learning materials for junior high school based on Cognitive Load Theory (CLT) and to describe the quality with respect to the validity, practicality, and effectiveness of the developed learning materials consisting of advanced geometry for seventh and eighth graders referring to the Curriculum of 2006. The research was a qualitative study using design research model suggested by Plomp, involving three phases: preliminary research, prototyping, and assessment. Research participants were 32 seventh and 32 eighth grade students at two public junior high schools in Wonosobo, as well as their mathematics teachers. These students had acquired minimum competencies to use the learning materials. This research resulted in junior high school geometry learning materials based on CLT, which satisfies the validity, practicality, and effectiveness aspects. The result of first formative evaluation informed that learning materials were categorized valid. The results of second formative evaluation and summative evaluation revealed that the learning materials were categorized practical. The effectiveness of learning materials could be seen from the results of the achievement test which showed that the percentage of seventh graders who passed the minimum criteria was 78%, with an average test score was 78; and the percentage of eighth graders who passed the minimum criteria was 75%, with an average test score was 80. Overall, the results showed that the developed learning materials can be used widely.Keywords: learning materials, advance, geometry SMP, Cognitive Load Theory.
IMPLEMENTASI TEKNIK JIGSAW DALAM PEMBELAJARAN GEOMETRI SEBAGAI UPAYA MENINGKATKAN HASIL BELAJAR DAN KEMANDIRIAN BELAJAR SISWA KELAS IX SMU NEGERI 1 DEPOK YOGYAKARTA Retnowati, Endah; Jailani, Jailani
Jurnal PIJAR Vol 4, No 1 (2009)
Publisher : Jurnal PIJAR

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstrak.  Penelitian tindakan kelas ini bertujuan untuk meningkatkan hasil belajar dan kemandirian belajar siswa melalui teknik pembelajaran jigsaw. Subjek penelitian ini adalah 36 siswa kelas XI Jurusan IPA SMU Negeri 1 Depok, Yogyakarta. Langkah-langkah penelitian tindakan kelas mengacu pada model Kemmis dan McTaggart dimana setiap siklus tindakan meliputi perencanaan, tindakan, observasi, dan refleksi. Instrumen penelitian terdiri dari lembar pengamatan pelaksanaan pembelajaran dan pengamatan terhadap partisipasi siswa, kuis, angket kemandirian belajar, angket sikap siswa dan wawancara. Penelitian ini terlaksana dalam 2 siklus. Hasil penelitian menunjukkan bahwa pembelajaran geometri dengan menerapkan teknik jigsaw dapat meningkatkan hasil belajar siswa, yaitu sebanyak 78.13% siswa tuntas belajar pada siklus 2 dengan adanya tindakan antara lain visualisasi materi dengan software CABRI, pemberian bimbingan atau petunjuk dalam mengaktifkan proses kognitif siswa untuk memahami materi, memvisualisasikan konsep melalui gambar yang menarik menggunakan presentasi dengan software CABRI dan melibatkan siswa dalam penilaian kuis. Sebelum siklus 1, sebanyak 32.26% siswa mampunyai kemandirian belajar kualifikasi atas dan setelah siklus 2 meningkat menjadi 37.93% siswa. Peningkatan kemandirian belajar terlihat menonjol terutama dalam hal menumbuhkan motivasi belajar, merumuskan tujuan belajar dan mengevaluasi hasil belajarnya.Kata Kunci: Jigsaw, hasil belajar matematika, kemandirian belajar
Pelatihan Penyusunan Lembar Kegiatan Siswa (LKS) Matematika Berbantuan Geogebra Training to Create Mathematics Student Activity Sheet Using Geogebra Dhoruri, Atmini; Sugiyono, Sugiyono; Retnowati, Endah; Lestari, Dwi; Sari, Eminugroho Ratna
Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Vol 2, No 1 (2018)
Publisher : Yogyakarta State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpmmp.v2i1.18688

Abstract

Student Activity Sheet (LKS) is one of the teaching materials that should be prepared by the teacher to improve the quality of learning. Especially for math teachers, LKS which is completed with graphical visualization can improve students enthusiasm. Software that is quite easy but with a complete feature is Geogebra. Therefore, the purpose of the training is for the preparation of Geogebra-assisted LKS.This training is in the form of demonstration activity of Geogebra both 2D and 3D for material of geometry, algebra, and calculus. The activity continued with the assistance to the participants by first forming the participants into several groups. Activities are inserted with evaluation and reflection so that participants needs can be accommodated. Apart from the technical use of Geogebra, the participants are also equipped with theory and motivation for the development of teaching materials.Based on the questionnaire results, a total of 65.38% of participants considered that the training activities are very motivating in improving the implementation of learning in schools. Participants also respond very well in terms of the usefulness of this training and expect continued activities. 
Penerapan teknik faded examples untuk meningkatkan kemampuan pemecahan masalah materi pengayaan trigonometri SMA Pambayun, Hanifa Prahastami; Retnowati, Endah
Jurnal Riset Pendidikan Matematika Vol 5, No 1: May 2018
Publisher : Program Studi Pendidikan Matematika Program Pascasarjana Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (707.887 KB) | DOI: 10.21831/jrpm.v5i1.12149

Abstract

Penelitian ini bertujuan untuk menghasilkan dan mendeskripsikan pengembangan bahan ajar pengayaan trigonometri SMA menggunakan teknik faded examples yang berkualitas untuk meningkatkan kemampuan pemecahan masalah siswa. Kualitas bahan ajar yang dikembangkan mencakup aspek kevalidan, keefektifan, dan kepraktisan. Penelitian ini merupakan penelitian pengembangan dengan model Plomp yang mencakup tiga tahapan. (1) penelitian awal mencakup analisis kebutuhan dan analisis konteks, (2) pengembangan yang mencakup desain produk dan pembuatan produk, dan (3) evaluasi yang meliputi proses validasi dan proses implementasi. Proses pengembangan melibatkan dua ahli, satu orang guru dan 50 siswa (siswa kelas X pengayaan 1 dan X pengayaan 2) SMA IPA di Mataram. Hasil dari penelitian ini adalah bahan ajar pengayaan berupa buku guru dan buku siswa yang dikembangkan dengan menerapkan teknik faded examples. Pada buku pengayaan terdapat paket faded examples dengan jenis backward dan forward fading dimana pada akhir paket, siswa diminta untuk membuat sendiri soal sesuai dengan materi yang sedang dipelajari. Teknik ini dikembangkan oleh teori desain pembelajaran bernama Cognitive Load Theory (CLT). Hasil penelitian menunjukkan bahwa bahan ajar ini layak digunakan karena dinilai sangat baik secara isi dan penyajian oleh dosen validator, praktis oleh guru matematika dan praktis digunakan oleh siswa. Hasil ketuntasan belajar adalah sebanyak  100% siswa mencapai nilai minimal kemampuan pemecahan masalah. The application of faded examples techniques to improve student’s problem solving ability on trigonometry at high school level AbstractThis study was aimed to produce and describe the quality of the developed Trigonometric Senior High School Science Program Enrichment’s Instructional Materials using Faded-Examples Techniques to Improve Problem Solving Ability. The quality of the developed teaching materials include all aspects of validity, effectiveness, and practicality. This was a developmental research used three phases Plomp’s model which consists of: (1) preliminary studies which involved the needs and context analysis, (2) product design development, and (3) the evaluation process of product validation and implementation. The development process involves two experts as validator, one teacher, and 50 students (X pengayaan 1 and X pengayaan 2). The study results the trigonometric enrichment’s teaching materials which consists of the teacher’s textbook and the student’s textbook that was developed using the faded-examples technique. This technique based on The Cognitive Load Theory (CLT) instructional design. The results of the study showed that the quality of the developed trigonometric enrichment’s teaching materials is “very good” according to lecturer validation and “practical” according to the evaluation from the teachers and students. The results of the learning showed that 100% of the students passed the minimum grade criteria of problem solving skills.
The Response Patterns of the Career Interest Instrument Based on Holland’s Theory Setiawati, Farida Agus; Ayriza, Yulia; Retnowati, Endah; Amelia, Rizki Nor
ANIMA Indonesian Psychological Journal Vol 32 No 3 (2017): ANIMA Indonesian Psychological Journal (Vol. 32, No. 3, 2017)
Publisher : Laboratory of General Psychology, Faculty of Psychology, Universitas Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1117.47 KB) | DOI: 10.24123/aipj.v32i3.628

Abstract

This study aims to identify: patterns of responses, the item parameters, and the possibility of gender bias in the career interest instrument developed by the authors based on the Holland?s theory. The sample of this study was 576 elementary students in Daerah Istimewa Yogyakarta who were recruited using the cluster random sampling method. Two parameters were employed to analyze the response patterns using BILOG program. The results were: (1) three items have inappropriate response patterns to the model; (2) all items of the career interest instrument showed good item parameter criteria; and (3) ten items were identified containing Differential Item Functioning (DIF) in relation to gender bias as shown by the Item Characteristic Curve (ICC). The implications of this study are this instrument can be used in assesing career interest of students and the information of biased items may be considered in the selection of careers for male and female students, including in scoring and interpretation.
Efektivitas worked example dengan strategi pengelompokan siswa ditinjau dari kemampuan pemecahan masalah dan cognitive load Irwansyah, Muhammad Ferry; Retnowati, Endah
Jurnal Riset Pendidikan Matematika Vol 6, No 1: May 2019
Publisher : Program Studi Pendidikan Matematika Program Pascasarjana Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (738.751 KB) | DOI: 10.21831/jrpm.v6i1.21452

Abstract

Pada penelitian ini bertujuan untuk mendeskripsikan dan membandingkan efektivitas strategi pembelajaran worked example dan problem solving dengan strategi pengelompokan siswa (kolaboratif dan individual) ditinjau dari kemampuan pemecahan masalah dan cognitive load. Penelitian ini melibatkan 64 siswa kelas 8 sebagai partisipan penelitian yang dibagi menjadi empat kelompok secara acak dengan menggunakan desain eksperimen 2 × 2 (worked example vs. problem solving) × kolaboratif vs. individual). Hasil penelitian ini mengindikasikan bahwa tidak terdapat perbedaan signifikan penerapan strategi worked example dengan pengelompokan kolaboratif dan individual ditinjau dari kemampuan pemecahan masalah. Ditinjau dari cognitive load, strategi worked example efektif ketika siswa belajar individual, namun tidak efektif ketika siswa belajar secara kolaboratif. Ketika siswa belajar secara individual, strategi worked example dapat mengaktifkan cognitive load lebih rendah daripada strategi problem solving, sedangkan ketika siswa belajar secara kolaboratif, strategi worked example dan problem solving tidak berbeda dalam mereduksi cognitive load. The effectiveness of worked example with students? grouping strategy viewed from problem-solving abilities and cognitive load AbstractThe study aimed to describe and compare the effectiveness of learning strategies (worked example and problem-solving) with the strategy of grouping students (collaborative and individual) viewed from problem-solving abilities and cognitive load. There were 64 of 8th-grade students as study participants divided into four groups randomly using experimental design 2 × 2 (worked example vs. problem-solving × collaborative vs. individual). The results of the study indicate that there is no significant difference implementation of worked example strategy between the collaborative strategies and individuals viewed from problem-solving abilities. Viewed from the cognitive load, the worked example strategy was effective when students learn individually, but it was not effective when students learn collaboratively. When students learn individually, worked example strategies could activate cognitive load lower than problem-solving strategies, whereas when students learn collaboratively, worked example strategies and problem-solving were no different in reducing cognitive load.