Yunis Sulistyorini, Yunis
Unknown Affiliation

Published : 8 Documents
Articles

Found 8 Documents
Search

ANALISIS KESALAHAN DAN SCAFFOLDING DALAM PENYELESAIAN PERSAMAAN DIFERENSIAL Sulistyorini, Yunis
KALAMATIKA Jurnal Pendidikan Matematika Vol 2, No 1 (2017): KALAMATIKA April 2017
Publisher : FKIP UHAMKA

Show Abstract | Original Source | Check in Google Scholar | Full PDF (239.718 KB)

Abstract

Tujuan dari penelitian ini adalah mendeskripsikan hasil analisis kesalahan dan scaffolding yang diterapkan dalam memperbaiki kesalahan matematika mahasiswa ketika menyelesaikan persamaan diferensial. Jenis penelitian merupakan penelitian kualitatif deskriptif. Subyek penelitian adalah mahasiswa program studi Pendidikan Matematika IKIP Budi Utomo Malang yang menempuh matakuliah Persamaan Diferensial. Hasil analisis kesalahan menunjukkan bahwa kesalahan yang muncul dalam menyelesaikan persamaan diferensial adalah kesalahan konseptual, prosedural dan faktual. Secara umum, penyebab kesalahan adalah karena mahasiswa tidak mengoptimalkan pengetahuan awal yang sudah dimiliki terkait konsep turunan dan integral dan mahasiswa belum sepenuhnya memahami konsep dan prosedur dalam penyelesaian persamaan diferensial. Selain itu, mahasiswa juga sering menyelesaikan persamaan diferensial dengan hanya melihat dan meniru contoh yang sudah diberikan. Perbaikan kesalahan dilakukan melalui penerapan scaffolding yang merupakan variasi dari pemberian petunjuk, handout dan penjelasan pada mahasiswa. Variasi penerapan scaffolding juga didampingi dengan pemberian umpan balik dan motivasi terhadap mahasiswa. Variasi penerapan scaffolding ditujukan agar mengoptimalkan kemampuan mahasiswa dalam menyelesaikan persamaan diferensial. Mahasiswa juga lebih mandiri dan terlibat aktif dalam pembelajaran. Jadi, selain mampu memperbaiki kesalahannya mahasiswa juga memperoleh pemahaman yang lebih mendalam terkait penyelesaian persamaan diferensial sekaligus meningkatkan sikap dan performanya dalam pembelajaran.
Algoritma HSABC: Placement Strategies dan Various Operational Constraints Untuk Solusi Optimal Operasi Ekonomis Tenaga Listrik Afandi, AN; Sulistyorini, Yunis
Jurnal EECCIS Vol 12, No 1 (2018)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (671.263 KB)

Abstract

Artikel ini berkonsentrasi pada dua strategi penempatan food sources pada algoritma harvest season artificial bee colony (HSABC) untuk mencapai solusi optimal dengan batasan teknis dan kendala lingkungan, melalui suatu formulasi fungsi combined economic and emission dispatch (CEED). Dua strategi tersebut diuji pada model sistem tenaga listrik standar IEEE-30 bus, untuk mendemonstrasikan performasi kemampuan intelijen komputasi pada algoritma HSABC. Berdasarkan hasil simulasi berbasiskan persoalan CEED, diketahui bahwa kedua strategi tersebut memiliki performasi yang berbeda. Selain itu keduanya juga memiliki kecepatan komputasi yang stabil dengan nilai optimal solusi yang sama, meski solusi tersebut dicapai dengan siklus dan performasi yang berbeda.
Analysis on Relational-Understanding in Solving Problem for Field Independent Students Yazidah, Nok Izatul; Argarini, Dian Fitri; Sulistyorini, Yunis
AT-TA'LIM Vol 25, No 3 (2018)
Publisher : Institut Agama Islam Negeri Imam Bonjol Padang

Show Abstract | Original Source | Check in Google Scholar

Abstract

This research is triggered by one of mathematics learning objectives in Senior High School which is about understanding mathematics concept. Based on the result of the observation and the conducted interview with mathematics teachers, it is said that on learning Combinatorica, students are always less of ability to solve the problem, sometimes students’ answer only focus on what is being asked. The purpose of this reasearch is to describe students’ relational understanding in solving problems for  FI students based on the gender. The subjects of this research are Senior High School students having field independent cognitive style in Malang and have been choosen randomly. The subjects consist of two students, a boy and a girl. The instruments needed in this research are sheet of GEFT test, sheet of Combinatorica questions, and interview sheet. The result of this research states that FI girl student has ability on relational understanding as the same as the FI boy students has. But the process in solving problem made by the boy student is likely similar to the accurate process in solving problems.
Analisis Kesalahan dalam Memecahkan Masalah Kombinatorika Ditinjau dari Gaya Kognitif Sulistyorini, Yunis; Argarini, Dian Fitri; Yazidah, Nok Izatul
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 7, No 1 (2018)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Show Abstract | Original Source | Check in Google Scholar | Full PDF (490.539 KB)

Abstract

Error analysis is integral part of mathematics learning. This qualitative research aims to describe the types and causes of student errors in solving combinatorics problem based on cognitive style. Subjects are high school students with field independent (FI) and field dependent (FD) cognitive style. Error analysis refers to Newman's error analysis. FI and FD students have same errors that are comprehension error at stage of understanding problem; processing skills error and encoding error at the stage of carrying out the plan. The causes of the errors are viewed from the cognitive factors, namely understanding students' concepts in solving problems. FI students have a deeper understanding and make careless error while the FD students have a lack of understanding of the concept which cause more error. The cause of errors in both students is also due to the accumulation of errors at stage of understanding problem. 
OPTIMASI DINAMIKA OPERASI EKONOMIS MENGGUNAKAN THUNDERSTORM ALGORITHM A.N. Afandi, A.N. Afandi; Sulistyorini, Yunis
SENTIA 2016 Vol 8, No 2 (2016)
Publisher : SENTIA 2016

Show Abstract | Original Source | Check in Google Scholar | Full PDF (801.621 KB)

Abstract

Dewasa ini, upaya untuk mencari solusi permasalahan riil semakin banyak didekati menggunakan teknik optimasi, baik menggunakan metode klasik atau intelijen komputasi. Pada perkembangannya, banyak model dikembangkan secara matematis dan banyak metode intelijen komputasi diterapkan pada berbagai persoalan riil. Hal ini digunakan untuk membantu mengambil keputusan operasional berdasarkan formulasi matematis dan mencari hasil optimal pada proses penyelesainnya. Salah satunya adalah persoalan dynamic economic dispatch(DED), yang merupakan masalah kombinasi unit-unit produksi untuk memenuhi kebutuhan perubahan permintaan energi selama 24 jam. Selain itu, dengan semakin populernya penggunaan metode intelijen komputasi, semakin membuat metode ini berkembang dan memiliki variasi yang beragam. Pada pembahasan ini, persoalan DED dikaji dengan melibatkan batasan teknis dan standar emisi, yang kesemuanya diintegrasikan dalam pernyataan matematis. Disamping itu, persoalan tersebut juga dikaji menggunakan model interkoneksi IEEE-62 bus system untuk memberikan perspekstif performasi Thunderstorm Algorithm (TA) sebagai metode baru intelijen komputasi dalam menyelesaian kasus DED. Hasil simulasi menunjukan bahwa algoritma ini mampu mendapatkan solusi optimal dengan siklus yang cepat. Proses komputasinya juga berlangsung dengan konvergenitas yang stabil dan halus. Pada rentang 24 jam, DED dioptimasi dengan perbedaan hasil pada kecepatan; daya keluaran; produksi emisi; dan biaya operasi, baik secara individu atau sebagai unit komitmen untuk setiap jam operasi.
PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS PREZI PADA MATAKULIAH ANALISIS VEKTOR Argarini, Dian Fitri; Sulistyorini, Yunis
KALAMATIKA Jurnal Pendidikan Matematika Vol 3 No 2 (2018): KALAMATIKA November 2018
Publisher : FKIP UHAMKA

Show Abstract | Original Source | Check in Google Scholar | Full PDF (404.838 KB)

Abstract

Undergraduate students have difficulties in understanding abstract concept of Vector Analysis and need visualization to support learning. Prezi-based instructional media developed by consider visual principle that support Vector Analysis learning. This study aims to describe Prezi-based instructional media development and produce Prezi-based instructional media that is suitable for learning. Development refers to ASSURE development model (Analyze learners, State objectives, Select methods, media and materials, Utilize media and materials, Require learners’ participation, and Evaluate and revise). The research instrument consisted of expert assessment sheets, test questions and student response questionnaires. Instructional media is feasible to be used satisfy aspects of validity and effectiveness. Assessment of the validity aspect based on the experts’ judgment that is on a valid criterion. While the assessment of effectiveness aspects based on test results are on quite good criteria and questionnaire responses of undergraduate students are on excellent criteria. Learning media consists of menu sections and content sections. The menu section consists of an overview of the material that will be presented in the media. The content section consists of material that can be zoomed in and zoomed out according to needs and learning videos to visualize the concept of Vector Analysis.
Analysis on Relational-Understanding in Solving Problem for Field Independent Students Yazidah, Nok Izatul; Argarini, Dian Fitri; Sulistyorini, Yunis
AT-TA'LIM Vol 25, No 3 (2018)
Publisher : Institut Agama Islam Negeri Imam Bonjol Padang

Show Abstract | Original Source | Check in Google Scholar | Full PDF (1158.094 KB)

Abstract

The purpose of this study is to describe students’ relational understanding in solving problems for FI students. The subjects of this research are Senior High School students having field independent cognitive style in Malang and chosen randomly. The subjects consist of two students. Sheet of GEFT test, sheet of Combinatorial questions, and interview sheet were used in this study. The finding of the study showed that medium-academic achievement student had an ability on relational understanding as the same as the high-academic achievement student. Meanwhile, the process in solving problem made by the high-academic achievement student was likely similar to the accurate process in solving problems.
Pengembangan Modul Analisis Vektor Terintegrasi Media Pembelajaran Prezi Sulistyorini, Yunis; Argarini, Dian Fitri
Laplace : Jurnal Pendidikan Matematika Vol 2 No 1 (2019)
Publisher : Program Studi Pendidikan Matematika IKIP PGRI Jember

Show Abstract | Original Source | Check in Google Scholar

Abstract

The study aims to describe the development and produce an integrated vector analysis module with Prezi that is valid, practical and effective. Development refers to the 4D development model, that is define, design, develop, and disseminate. Disseminate stage is not done in this research because the use of module is only limited to undergraduate students of Mathematics Education IKIP Budi Utomo Malang. The developed Vector Analysis module is feasible of use that satisfy all three aspects, namely validity, practicality and effectiveness. The developed vector analysis module has several advantages. First, connect the concept of vector analysis with real life. Second, integrated with prezi-based learning media that support deeper understanding of the concept of vector analysis.