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Izwita Dewi
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Upaya Meningkatkan Kreativitas Matematis Siswa Sekolah Menengah Pertama Negeri 5 Terbuka Medan dengan Menggunakan Modul Model Learning cycle Izwita Dewi; Siti Lisiani
Didaktik Matematika Vol 2, No 1 (2015): Jurnal Didaktik Matematika
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (423.206 KB)

Abstract

Abstract. This class room action research aimed to improve students' mathematical creativity in mathematical problem solving, and described the learning process of students of SMP Negeri 5 Terbuka. The learning method used module learning cycle models. This research was conducted in two cycles included the steps of planning, implementation of action, observation, and reflection. Students' mathematical creativity in solving mathematical problems measured was fluency, flexibility, elaboration, and originality. The results showed that students' mathematical creativity in mathematical problem solving increased. The aspects of the students' mathematical creativity in mathematical problem solving that most increased in this study were elaboration.Keywords: mathematical creativity, solving mathematical problems, module learning cycle models
PERBEDAAN KEMAMPUAN PEMECAHAN MASALAH DAN METAKOGNISI MATEMATIKA ANTARA SISWA YANG DIBERI PEMBELAJARAN BERBASIS MASALAH DAN PEMBELAJARAN EKSPOSITORI Nurhadijah Nurhadijah; sahat Saragih; Izwita dewi
PARADIKMA: JURNAL PENDIDIKAN MATEMATIKA Vol 7, No 1 (2014): PARADIKMA JURNAL PENDIDIKAN MATEMATIKA
Publisher : Study Program of Mathematics Education of Unimed Postgraduate Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/paradikma.v7i3.2966

Abstract

Tujuan dari penelitian ini untuk mengetahui :( (1) perbadaan kemampuan pemecahan masalah matematika antara siswa yang diberi model pembelajaran berbais masalah dengan siswa yang diberi model pembelajaran ekspositori. (2) perbedaan kemampuan metakognisi matematika antara siswa yang diberi model pembelajaran yang berbasis masalah dengan siswa yang diberi model pembelajaran ekspositori. (3) interaksi antara model pembelajaran dan kemampuan awal matematika siswa terhadap kemampuan pemecahan masalah siswa. (4) interaksi antara model pembelajaran dan kemampuan awal matematika siswa terhadap komunikasi matematik siswa . (5) mendeskripsikan kadar aktivitas aktif siswaselama proses model pembelajaran berbasis masalah. (6) proses penyelesaian jawaban yang dibuat siswa dalam meyelesaikan masalah pada model pembelajaran ekspositori. Analisis data dilakukan dengan analisis kovarian (ANACOVA) dengan analisi varian (ANAVA). Hasil penelitian menunjukkan bahwa : (1) Terdapat perbedaan kemampuan pemecahan masalah matematika antara siswa yang diberi Model pembelajaran berbasis masalah dengan siswa yang diberi model pembelajaran ekspositori . (2) Terdapat kemampuan metakognisi matematika antara siswa yang diberi model pembelajaran berbasis masalah dengan siswa yang diberi model pembelajaran ekspositori. (3) Kadar aktivitas siswa telah memenuhi waktu persentase ideal yang di tetapkan. (4) Proses penyelesaian jawaban siswa yang pembelajarannya dengan menggunakan model pembelajaran berbasis masalah lebih baik dibandingkan dengan model pembelajarann ekspositori.
PENINGKATAN KEMAMPUAN PENALARAN LOGIS DAN KOMUNIKASI MATEMATIS MELALUI MODEL PEMBELAJARAN KOOPERATIF TIPE THINK PAIR SHARE (TPS) DI SMP NEGERI 24 MEDAN Siti Zahara H.Harahap; Izwita Dewi; Ida Karnasih
PARADIKMA: JURNAL PENDIDIKAN MATEMATIKA Vol 7, No 1 (2014): PARADIKMA JURNAL PENDIDIKAN MATEMATIKA
Publisher : Study Program of Mathematics Education of Unimed Postgraduate Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/paradikma.v7i3.2967

Abstract

Tujuan penelitian ini untuk mengetahui apakah: (1) peningkatan kemampuan penalaran logis siswa yang memperoleh model pembelajaran kooperatif tipe TPS lebih tinggi dari pada siswa yang memperoleh pembelajaran ekspositori, (2) peningkatan kemampuan komunikasi matematis siswa yang memperoleh  model  pembelajaran kooperatif tipe TPS lebih tinggi dari pada siswa yang memperoleh pembelajaran ekspositori, penelitian ini dilaksanakan di SMP Negeri 24 Medan dengan sampe 56 siswa. Penelitian ini merupakan suatu studi eksperimen semua dengan pretest dan postest control group design. Populasi dalam penelitian ini adalah seluruh siswa kelas VIII yang mengambil dua kelas (kelas eksperimen 1 dan kelas eksperimen 2) melalui nteknik random sampling. Instrumen yang di gunakan terdiri dari tes kemampuan penalaran logis dan tes kemampuan komunikasi matematis yang berbentuk uraian. Data analisis dengan uji t. Sebelum digunakan uji t terlebih dahulu dilakukan uji normalitas dan uji homogenitas dengan taraf signifikan 5%. Hasil analisis data menunjukkan bahwa rata-rata N-Gain tes kemampuan penalaran logis kelas eksperimen adalah 0,65 dan kelas kontrol adalah 0,53 dengan nilai sig=0,007 dengan 0,007< a=0,05 maka peningkatan kemampuan logis siswa pada kelas eksperimen lebih tinggi dari pada kelas kontrol. Sedangkan rata-rata N-Gain tes kemampuan komunikasi matematis eksperimen adalah 0,62 dan kelas kontrol o,38 dengan nilai sig-0,000 dengan 0< a=0,05 maka peningkatan kemampuan logis siswa pada kelas eksperimen lebih tinggi dari pada kelas kontrol. Kata kunci: Pembelajaran kooperatif tipe TPS, kemampuan penalaran logis kemempuan komunikasi matematis.
Pengembangan Perangkat Pembelajaran Berbasis Blended Meningkatkan Kemampuan Kreativitas Matematis Dan Self-Efficacy Siswa Ade Irwansah Nasution; Izwita Dewi; Dian Armanto
PARADIKMA: JURNAL PENDIDIKAN MATEMATIKA Vol 15, No 1 (2022): PARADIKMA JURNAL PENDIDIKAN MATEMATIKA
Publisher : Study Program of Mathematics Education of Unimed Postgraduate Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/paradikma.v15i1.34123

Abstract

Penelitian ini bertujuan untuk : 1) mengetahui bagaimana validitas, kepraktisan, dan keefektifan perangkat pembelajaran berbasis Blended learning pada pembelajaran matematika.; 2) mengetahui peningkatan kemampuan matematis siswa menggunakan perangkat berbasis Blended learning pada pembelajaran matematika; dan 3) mengetahui peningkatan efikasi diri siswa dengan menggunakan pembelajaran perangkat berbasis Blended learning pada pembelajaran matematika. Jenis penelitian ini adalah jenis penelitian pengembangan (development research). Penelitian ini menggunakan model pengembangan 4-D ( define, design, develop, dan menyebarkan) Thiagarajan dan Semmel (1974) dengan mengembangkan perangkat berbasis Blended Learning. Penelitian ini akan dilaksanakan di SMA Islam Al-ulum Terpadu Medan. Subjek dalam penelitian ini adalah siswa SMA Islam Al-ulum Terpadu Medan kelas XI MIA tahun ajaran 2021/2022. Hasil penelitian menunjukkan bahwa : 1) Perangkat pembelajaran berbasis Blended Learning dalam meningkatkan kemampuan kreativitas matematis dan belajar siswa yang dikembangkan sudah memenuhi kriteria valid, praktis dan efektif; 2) Peningkatan kemampuan kreativitas matematis siswa menggunakan perangkat yang telah dikembangkan berbasis Blended Learning dilihat dari N-Gain 0,83 artinya berada dalam kategori “Tinggi”;3) Peningkatan Self-efficacy siswa menggunakan perangkat yang telah dikembangkan berbasis Blended Learning   dilihat dari Nilai N-Gain 0,14 artinya berada dalam ketegori “Rendah” atau hanya sedikit mengalami peningkatan kemampuan Self-efficacy.
Development of Hypercontent-Based Open-Ended Approach-Based Learning Devices to Improve SMK Students' Creative Thinking Abilities Putri Elmaretha Purba; Elmanani Simamora; Izwita Dewi
PARADIKMA: JURNAL PENDIDIKAN MATEMATIKA Vol 16, No 1 (2023): PARADIKMA JURNAL PENDIDIKAN MATEMATIKA (January - June 2023)
Publisher : Study Program of Mathematics Education of Unimed Postgraduate Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/paradikma.v16i1.42621

Abstract

This study aims to: 1) obtain learning tools developed using an open-ended approach using hypercontent that meet validity, practicability, and effectiveness to improve students' creative thinking skills; and 2) describe how to apply learning tools developed using an open-ended approach using hypercontent to improve students' creative thinking skills. This study is concerned with development. The ADDIE development paradigm was used in this study. 1) The development of learning tools based on an open-ended approach using hypercontent meets the criteria of validity, practicability, and effectiveness of learning tools; 2) In trial I and trial II, the ability to improve creative thinking skills using learning tools based on an open-ended approach using hypercontent increased from 0.22 with low criteria to 0.39 with moderate criteria.
Analisis Kemampuan Berpikir Komputasional Matematis Siswa Dalam Menyelesaikan Soal Pisa Konten Change And Relationship Erlinawaty Simanjuntak; Dian Armanto; Izwita Dewi
Jurnal Fibonaci: Jurnal Pendidikan Matematika Vol 4, No 1 (2023): JURNAL FIBONACI: JURNAL PENDIDIKAN MATEMATIKA
Publisher : Prodi Pendidikan Matematika FMIPA Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jfi.v4i1.46106

Abstract

Penguasaan kemampuan berpikir komputasional sebagai salah satu teknik penyelesaian masalah menjadi sangat penting dimasa sekarang untuk menyiapkan generasi penerus yang berdaya saing.  Berpikir komputasional adalah proses berpikir yang diperlukan dalam memformulasikan masalah dan menemukan solusinya. Sebagai langkah awal dalam meningkatkan dan mengembangkan kemampuan berpikir komputasional matematis siswa, maka perlu diketahui dan dianalisis terlebih dahulu bagaimana kemampuan berpikir komputasional matematis siswa. Jenis penelitian ini adalah deskriptif kualitatif. Responden penelitian adalah siswa SMPN 1 Binjai sebanyak 10 siswa. Teknik penentuan responden adalah random sampling method. Teknik pengumpulan data penelitian ini adalah tes Instrumen yang digunakan adalah satu soal matematika yang diadaptasi dari soal PISA konten change and relationship. Berdasarkan hasil jawaban seluruh responden, tidak semua mampu mengikuti proses berpikir komputasional, ada beberapa jawaban yang tidak sesuai dikarenakan kurang memahami masalah dan tidak teliti dalam melakukan perhitungan. Namun diantaranya ada 2 jawaban benar yang berhasil mengikuti proses berpikir komputasional. Dari kedua jenis jawaban benar yang ditampilkan, ditemukan bahwa pada dasarnya siswa telah memiliki kemampuan berpikir komputasional matematis yang baik. Tidak semata bekerja dengan menerapkan konsep ataupun rumus namun juga bekerja dengan menerapkan logika berpikir.
THE EFFECT OF PROJECT BASED LEARNING MODEL WITH STEM APPROACH TO STUDENTS’ CRITICAL THINGKING SKILL ON HUMAN EXCRETION SYSTEM Halim Simatupang; Kms. Muhammad Amin Fauzi; Izwita Dewi
Jurnal Pelita Pendidikan Vol 11, No 4 (2023): Jurnal Pelita Pendidikan
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpp.v11i4.54891

Abstract

This study was aimed to determine the effect of Project Based Learning Model with STEM approach to students' critical thinking skills on Human Excretion System material in class 8th grade at SMP Negeri 37 Medan. This research used quantitative methods with the type of research quasi experiment with pretest-posttest control group design. The sample of this study consisted of two classes randomly selected by simple random sampling technique, namely in class VIII-D and VIII-F. The first sample is an experimental class that was taught using the PjBL-STEM learning model, and the second sample is a control class that was taught using conventional learning methods. The research instrument that was used included critical thinking skills test instrument using essay questions totaling 5 questions. Analysis of research data used the Independent Sample T-Test test using SPSS version 26.0. The pretest data results of students' critical thinking skills in class VIII-D and class VIII-F are 33.71 and 29.35. After obtained the results of the initial ability of students by looking at the pretest results in both classes, class VIII-D was selected as the experimental class and class VII-F as the control class. The posttest data in the experimental class and control class are 80.00 and 52.58. Based on the hypothesis test, the calculated t value is 12.761 > t table 1.671, and the significance value is 0.000 < ????, with ???? = 0.05, so H0 is rejected and Ha was accepted, which meant that there was an effect of the PJBL-STEM model on the critical thinking skills of students on the material of the excretory system. The influence of the PJBL-STEM model on students' critical thinking skills was categorized as strong with a cohen's d value of 3.242. It can be concluded that the PJBL-STEM model have an effect on students' critical thinking skills with a strong effect category. 
The Effect Of Using Multimedia Macromedia Flash On Student Mathematics Communication At SMP Negeri 1 Labuhan Deli Fitri Adhiningsih Rizky; Izwita Dewi
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 2 No. 2 (2023): Oktober : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v2i2.1742

Abstract

This research is a quasi-experimental research. The research conducted at SMP Negeri 1 Labuhan Deli aims to find out. 1) To find out how the mathematical communication ability of students who learn to use Macromedia Flash. 2) To find out how the mathematical communication ability of students who learn without using Macromedia Flash. 3) To find out whether the mathematical communication of students who learn using Macromedia Flash media is better than the mathematical communication of students who learn without using Macromedia Flash media for class VII students at SMP Negeri 1 Labuhan Deli T.A. 2021/2022. The population in this study were all students of class VII at SMP Negeri 1 Labuhan Deli. Using a homogeneous technique, samples were taken from 2 classes of population. One class was used as the experimental class, namely class VII-2 which was taught with Macromedia Flash and class VII-3 which was used as the control class, namely class which was taught without using Macromedia Flash. As a data collection tool using PreTest and PostTest. In this study 1) the mathematical communication ability of students learning to use Macromedia Flash with an average pretest of 67.77 and a posttest of 85.54. 2) the mathematical communication ability of students who learn without using Macromedia Flash with an average pretest of 67.13 and a posttest of 77.54. then testing the hypothesis for learning outcomes using paired t-test. after testing the data, it turns out that the results of testing the ability of learning outcomes in the experimental class at the pretest level α = 0.05 with Lcount < Ltable, namely 0.09452 <0.192 and posttest 0.1228 <0.192 , and the results of testing the ability of learning outcomes in the control class at the pretest level α = 0.05 with Lcount < Ltable, namely 0.1014 < 0.184 and posttest 0.1659 < 0.184, then H0 is accepted and Hi is rejected. Thus it can be concluded that the mathematical communication ability of students who use macromedia flash media are better than those without using macromedia flash media.
PENGARUH MODEL PEMBELAJARAN INKUIRI BERBANTUAN MEDIA GEOGEBRA UNTUK MENINGKATKAN KEMAMPUAN PEMAHAMAN KONSEP MATEMATIKA PESERTA DIDIK KELAS X Nella Putri Sihombing; Izwita Dewi
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 03 (2025): Volume 10 No. 3 September 2025 In Order
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v10i03.34368

Abstract

The background of this study is the low level of students' understanding of mathematical concepts, especially in trigonometry, which requires innovation in learning. The inquiry learning model was chosen because it emphasizes student activities in discovering concepts through questioning, investigating, and proving, while Geogebra was used as an interactive medium to visualize mathematical concepts. This study aims to determine the effect of the Geogebra assisted inquiry learning model on the mathematical concept comprehension abilities of tenth-grade students. The research method used was a quasi-experiment with a one-group pretest-posttest design. The research sample consisted of 36 tenth-grade students selected through purposive sampling. The research instrument was a test of mathematical concept comprehension in the form of essay questions compiled based on four indicators, namely restating a concept, giving examples and non-examples of a concept, presenting concepts in mathematical representations, and applying a concept or problem-solving algorithm. The data were analyzed through validity, reliability, difficulty level, discriminating power, and normality tests. Hypothesis testing was conducted using a t-test with the help of SPSS software. Based on the t-test results, the average pretest score for students was 9.4722, while the average posttest score increased to 12.8611 after participating in learning with the GeoGebra-assisted inquiry model. Thus, there was a difference in the average increase of 3.3889 points, so was rejected and was accepted. This proves that there is an effect of media-assisted inquiry using Geogebra on the mathematical concept comprehension abilities of 10th grade students at SMA Negeri 1 Doloksanggul.
PENGARUH PENDEKATAN MATEMATIKA REALISTIK BERBASIS ETNOMATEMATIKA TERHADAP KEMAMPUAN BERPIKIR KRITIS MATEMATIS PESERTA DIDIK KELAS VII Aulia Anggun Mutiara; Izwita Dewi
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 03 (2025): Volume 10 No. 03 September 2025 Terbit
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v10i03.34373

Abstract

The low level of students’ mathematical critical thinking skills at SMP Negeri 3 Satap Teluk Mengkudu remains a challenge in the mathematics learning process. This study aims to investigate the effect of the realistic mathematics education approach based on ethnomathematics on the critical thinking skills of seventh-grade students. The research was conducted in the first semester of the 2025/2026 academic year using a one-group pretest-posttest design. The sample was selected through purposive sampling, with class VII-1 designated as the experimental group. Descriptive analysis results indicate an increase in the mean score from 48.05 in the pretest to 78.71 in the posttest. The paired sample t-test produced a significance value of 0.000 (<0.05), indicating a significant difference between the pretest and posttest results. Furthermore, the effect size calculation of 3.68 demonstrates a very large impact. Thus, it can be concluded that the realistic mathematics education approach based on ethnomathematics is effective in enhancing students’ mathematical critical thinking skills. Future studies are recommended to expand the scope and explore other aspects, such as conceptual understanding, problem-solving ability, and creative thinking.
Co-Authors Ade Irwansah Nasution Aulia Anggun Mutiara Dian Armanto Edy Surya Elia Elfani Elmanani Simamora Erlinawaty Simanjuntak Fitri Adhiningsih Rizky Halim Simatupang Ida Karnasih KMS. Muhammad Amin Fauzi Manullang, Mindo Nella Putri Sihombing Nurhadijah Nurhadijah Putri Elmaretha Purba Retno Windasari Sahat Saragih Sidabutar, Natalia ayu Siti Lisiani Siti Zahara H.Harahap