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All Journal Wahana Didaktika Journal on Education Eksponen LINEAR: Journal of Mathematics Education Hipotenusa: Journal of Research Mathematics Education (HJRME) Kognitif: Jurnal Riset HOTS Pendidikan Matematika Bulletin of Science Education Sibatik Journal : Jurnal Ilmiah Bidang Sosial, Ekonomi, Budaya, Teknologi, Dan Pendidikan Smart Society: Community Service and Empowerment Journal Inovasi Matematika (Inomatika)
Deni Efendi
Prodi Pendidikan Matematika, FKIP, Universitas Muhammadiyah Lampung
Arts Humanities Computer Science & IT Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Library & Information Science Mathematics Social Sciences Other

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PENGEMBANGAN BAHAN AJAR MATEMATIKA DENGAN MODEL DISCOVERY LEARNING UNTUK MENGEMBANGKAN KETERAMPILAN BERPIKIR KRITIS Deni Efendi
Eksponen Vol. 9 No. 1 (2019): Eksponen: Vokume 9 Nomor 1 April 2019
Publisher : Universitas Muhammadiyah Kotabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47637/eksponen.v9i1.132

Abstract

This research aimed to find out the validity and effectivity of Discovery Learning Model-integrated mathematics instructional materials on SPLDV topic viewedthrough critical thinking skill improvement and percentage of students’ learning completion. It occupied Reserach and Development utilizing procedures established by Borg and Gall, with only performing up to main product revision. The research subject was students VIII G class of SMP Negeri 1 Seputih Agung, with moderate to high skill characteristic. Meanwhile, data of students’ critical thinking skill improvement were gained through pretest and posttest, using N-Gain test. Eventually, the research result pointed out that validation of mathematics instructional materials developed through Discovery Learning Model on SPLDV topic attained good and effective interpretation. It was seen through moderatecategorized calculation of N-Gain and accomplishment level of students’ learning result exceeding ideal accomplishment percentage (75%).
HASIL BELAJAR MAHASISWA PADA PEMBELAJARAN FULL ONLINE BERDASARKAN GENDER PADA MATA KULIAH ALJABAR LINEAR Deni Efendi; Endah Wulantina
LINEAR: Journal of Mathematics Education Volume 2 Nomor 1 Juni 2021
Publisher : Fakultas Tarbiyah dan Ilmu Keguran IAIN Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (251.452 KB) | DOI: 10.32332/linear.v2i1.3205

Abstract

Sejak mewabahnya COVID 19, pemerintah membuat kebijakan tentang pembelajaran full online untuk seluruh lembaga pendidikan termasuk perguruan tinggi. Kebijakan tersebut membuat sistem pembelajaran berubah dan hasil belajar mahasiswapun berubah. Tujuan penelitian ini adalah untuk mengetahui hasil belajar mahasiswa pada pembelajaran full online ditinjau dari perbedaan gender pada mata kuliah aljabar linear. Teknik pengolahan dan analisa data pada penelitian ini menggunakan metode kuantitatif. Pengumpulan dan analisa data kuantiatif menggunakan tes awal dan tes akhir serta pengolahan dan analisa data perbedaan dua rata-rata menggunakan uji Mann-Whitney U. Hasil penelitian ini menunjukan bahwa kelompok data mahasiswa laki-laki maupun perempuan tidak menunjukan perbedaan hasil yang signifikan dengan nilai p-value atau sig. sebesar 0,803 > alpha= 0,05. Artinya mahasiswa laki-laki dan perempuan yang melaksanakan proses pembelajaran full online memberikan efek yang sama pada ranah kognitif mahasiswa.
BERPIKIR KRITIS MATEMATIS DENGAN MODEL PEMBELAJARAN PENEMUAN Deni Efendi; Caswita Caswita
Hipotenusa Journal of Research Mathematics Education (HJRME) Vol 1, No 1 (2018): Hipotenusa Journal of Research Mathematics Education (HJRME)
Publisher : Universitas Muhammadiyah Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36269/hjrme.v1i1.817

Abstract

Studi ini merupakan kajian teoritis untuk menganalisis peran model penemuan dalam mengembangkan keterampilan berpikir kritis matematis. Terdapat duabuah bahan analisis dalam studi ini, yaitu enam tahap aktivitas dalam model pembelajaran penemuan yang meliputi stimulation, problem statement, data collection, data processing, verification, generalization dan enam buah indikator berpikir kritis matematis yang meliputi menginterpretasi, menganalisis, mengevaluasi, menarik kesimpulan, penjelasan, kemandirian. Melalui langkah langkah yang dilakukan dalam model pembelajaran penemuan, siswa melakukan aktivitas aktivitas yang menunjang keterampilan berpikir kritis, sehingga model pembelajaran penemuan mempunyai peran yang sangat baik dalam mengembangkan keterampilan berpikir kritis siswa.
MEANINGFUL LEARNING DALAM PEMBELAJARAN MATEMATIKA Diki Irmawan; Deni Efendi; Fitria Lestari
Hipotenusa Journal of Research Mathematics Education (HJRME) Vol 4, No 2 (2021): Hipotenusa Journal of Research Mathematics Education (HJRME)
Publisher : Universitas Muhammadiyah Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36269/hjrme.v4i2.500

Abstract

In the learning process not every student succeeds through the learning process done in other words not every student can achieve the learning objectives as expected. This is due to abstract mathematical concepts. Many factors influence it, including intelligence, learning readiness, interests, motivation, teacher abilities, maturity, family, school and community. The purpose of this study is to know the meaningful influence of learning on students' math learning outcomes. This research uses descriptive quantitative methods. The population in this study is all grade VII students of SMPN 1 Katibung Lampung Selatan. The results of the hypothesis test using the t-test showed the influence of meaningful learning application on improving the results of mathematics learning students of grade VII SMPN 1 Katibung south lampung. Students who apply meaningful learning have a higher average math learning outcome than the average student learning outcomes that do not apply meaningful learning. Thus, the application of meaningful learning can improve students' math learning outcomes.
Students' Mathematical Disposition with Blended Learning in Post Covid-19 Dwi Desmayanasari; Desrina Hardianti; Deni Efendi; Tia Agnesa
Jurnal Inovasi Matematika Vol 4 No 2 (2022): Inovasi Matematika (Inomatika)
Publisher : Pendidikan Matematika Universitas Muhammadiyah Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (716.956 KB) | DOI: 10.35438/inomatika.v4i2.326

Abstract

This study aims to analyze the mathematical disposition of online learning during the Covid-19 pandemic. The study type is descriptive quantitative, the subjects are 64 students of the education management program consisting of 18 males and 46 females. Based on the study result, the students mathematical disposition in blended learning during Covid-19 was in the high category. Of the six aspects of disposition measured, four aspects are classified as high, the aspect of confidence in using mathematics in solving problems is classified as moderate, while the aspect of appreciating the usefulness of mathematics in everyday life and other fields of science is very low. This study is a preliminary study to see the mathematical disposition of students during online learning. The aspect of appreciating the usefulness of mathematics needs special attention for further research where students have not fully recognized and realized the existence of mathematics in their daily activities and in other fields of science
THE USE OF OPEN ENDED LEARNING MODELS IN TERMS OF STUDENTS' MATHEMATICAL CREATIVE THINKING ABILITY anwar sidiq; Dwi Desmayanasari; Noprisa Noprisa; Suryatul Aini Asyhara; Deni Efendi
Hipotenusa Journal of Research Mathematics Education (HJRME) Vol 5, No 2 (2022): Hipotenusa Journal of Research Mathematics Education (HJRME)
Publisher : Universitas Muhammadiyah Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36269/hjrme.v5i2.1107

Abstract

This research aimed to find out the differences of the improvement of students mathematical creative thingking skill using open ended. This research used quasi experimental method whith pretest-posttest control group. The subjects of this research were 60 students at class VII in one of the MTs in Bandar Lampung city. There are two classess in this study namely the experimental class consisted of 30 students getting open ended learning models and the second control class consisted of student getting scientific approach. The instrument of this study used student creative thingking skill test, based on mathematical creative thingking indicator. The result of this study showed all of improvement of mathematical creative thingking students ability getting open ended learning model was not better then students getting scientific approach. 
PENGARUH MODEL PEMBELAJARAN THINK TALK WRITE (TTW) TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS PESERTA DIDIK Devy Margaretha; Fitria Lestari; Deni Efendi
Hipotenusa Journal of Research Mathematics Education (HJRME) Vol 6, No 2 (2023): Hipotenusa Journal of Research Mathematics Education (HJRME)
Publisher : Universitas Muhammadiyah Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36269/hjrme.v6i2.153

Abstract

Penelitian ini bertujuan untuk meneliti pengaruh model pembelajaran Think Talk Write terhadap kemampuan pemecahan masalah matematis peserta didik. Penelitian ini menggunakan quasi experimental design dengan bentuk nonequivalent control group design. Jumlah subjek penelitian sebanyak 47 peserta didik kelas VIII tahun pelajaran 2019/2020 salah satu SMP di Lampung Selatan. Pemilihan subjek berdasar pada pendapat guru, terpilih peserta didik kelas VIII A berjumlah 23 peserta didik sebagai kelompok eksperimen yang diberi model pembelajaran Think Talk Write dan peserta didik kelas VIII B berjumlah 24 peserta didik sebagai kelompok kontrol menggunakan pendekatan saintifik dengan metode diskusi. Instrumen penelitian berupa tes kemampuan pemecahan masalah matematis peserta didik. Data hasil uji normalitas, homogenitas, uji t, dan uji skor N-Gain pretes-postes kemampuan pemecahan masalah matematis menunjukkan bahwa: (1) tidak terdapat pengaruh model pembelajaran TTW terhadap kemampuan pemecahan masalah matematis peserta didik; (2) peningkatan kemampuan pemecahan masalah peserta didik yang menggunakan model pembelajaran Think Talk Write tidak lebih baik daripada peserta didik yang menggunakan pendekatan pembelajaran saintifik dengan metode diskusi.
Video Online Learning: An Alternative for Students' Mathematics Problem Solving Fitria Lestari; Deni Efendi; Triyana Dara
Bulletin of Science Education Vol 3 No 3 (2023): Bulletin of Science Education
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/bse.v3i3.807

Abstract

The research design used quantitative in control group design (pretest-posttest control group design). The population in this study were all students of class VIII at SMP Muhamamdiyah 3 Bandar Lampung, totaling 147 students. The sampling technique used purposive sampling technique with the consideration that the selected sample was taught by the same teacher. For this reason, there were 2 sample classes, namely the experimental class, which consisted of 29 students and the control class, which consisted of 29 students. Data collection techniques were obtained through problem solving ability tests, observation. Based on the results of the analysis, it was obtained that there is a significant influence between classes using problem solving assisted learning online learning videos and classes using conventional learning models testing criteria with a significance level of 0.05. It was found that the results of the Sig t-test, (2 tailed) in both sample classes is 0.000 <0.05, then Ho is accepted meaning: there is a significant difference in effect between classes using problem solving learning assisted by online learning videos and classes using conventional learning models. Keywords: Problem Solving, Online Learning Videos, Mathematical Problem Solving Skills
Exsplorasi Etnomatematika pada Materi Geometri dan Barisan melalui Permainan Kelereng dan Petak Umpet di Kelas VII SMP Bhakti Mulya Garda Brendaru Berlin; Deni Efendi; Dwi Desmayanasari
Journal on Education Vol 6 No 3 (2024): Volume 6 Nomor 3 Tahun 2024
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v6i3.5637

Abstract

This research was carried out with the aim of knowing the arithmetic sequences and sequence patterns found in the game of marbles and hide and seek at Bhakti Mulya Middle School. This type of research is qualitative research with an interactive qualitative design, namely ethnographic field studies in collecting data directly from the natural environment. The research was conducted in 3 meetings. The data techniques used in this research are observation, interviews, and documentation which are analyzed using the interactive model data analysis technique proposed by Miles and Huberman, namely data, data reduction, data display, and data. taking. The results of the research show that: (1) there is a pattern of counting rows and arithmetic sequences in the game of marbles and hide and seek at Bhakti Mulya Middle School where the application of these concepts is applied naturally without studying the mathematical concepts of the Bhakti Mulya Middle School community, (2) there is a meaning in the use of kandaure in every Toraja community activities include ramba solo' activities which are used as decorations in traditional ceremonies, decorations in the Bhakti Mulya Middle School mortuary, complementary accessories for Toraja traditional clothing at death ceremonies, and tuka signs used as wedding ceremony decorations and complementary accessories for Toraja traditional clothing. at weddings or dances, (3) there is a connection between mathematics learning and arithmetic sequence patterns in marbles and hide-and-seek games at Bhakti Mulya Middle School, especially in the arithmetic sequences and series material studied at school. Thus, it can be ignored that the counting row pattern and series of marble and hide and seek games at Bhakti Mulya Middle School have a connection with mathematics learning and also have useful meaning in every activity of the Bhakti Mulya Middle School community.
Penggunaan Media Pembelajaran Jarimatika dengan Metode Drill Sebagai Upaya Meningkatkan Hasil Belajar Matematika : Materi Perkalian Dasar Lestari, Fitria; Antonio, Joemar P; Efendi, Deni; Noprisa, Noprisa; Yeni, Endri
Wahana Didaktika : Jurnal Ilmu Kependidikan Vol. 22 No. 1 (2024): Wahana Didaktika: Jurnal Ilmu Kependidikan
Publisher : Faculty of teaching training and education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/wahanadidaktika.v22i1.15197

Abstract

Latar belakang masalah pada penelitian tindakan kelas ini adalah nilai rata-rata hasil belajar matematika kelas III SDN 2 Gunung Tiga pada kompetensii dasar melakukan perkalian yang hasilnya tiga, angka menunjukkan hasil yang kurang maksimal, dari jumlah siswa 15 orang hanya 5 siswa yang telah memenuhi kriteria ketuntasan minimal (KKM) sedangkan sisanya sebanyak 10 siswa belum memenuhi kriteria ketuntasam minimal. Upaya meningkatkan hasil belajar matematika pada materi perkalian dasar dengan penggunaan media pembelajaran jarimatika dan metode drill di siswa kelas III SD Negeri 2 gunung Tiga. Pelaksanaan perbaikan pembelajaran dilakukan 2 siklus. Pada siklus 1 terdapat kekurangan dalam penggunaan metode jarimatika yang diperbaiki pada siklus 2 sehingga kegiatan pembelajaran menjadi lebih efektif. Melalui dengan penggunaan media pembelajaran jarimatika dan metode drill siswa menjadi aktif dan interaktif sehingga kegiatan pembelajaran matematika menjadi lebih menyenangkan. Hal ini terlihat data hasil belajar siswa yang diperoleh pada prasiklus mencapai tingkat ketuntasan 33% kemudian pada siklus I mencapai Tingkat ketuntasan yaitu 57% dengan peningkatan ketuntasan hasil belajar siswa mencapa 24% kemudian pada siklus II hasil belajar siswa mencapai ketuntasan sebesar 93,3% sehingga selisih hasil belajar siswa dengan siklus I mencapai 36.3%Dengan demikian dapat disimpulkan bahwa penerapan dengan penggunaan media pembelajaran jarimatika dan metode drill diharapkan dapat meningkatkan hasil belajar matematika materi perkalian dasar pada siswa kelas III SD Negeri 2 Gunung Tiga.
Co-Authors Andika Eko Prasetiyo, Andika Eko Antonio, Joemar P anwar sidiq Caswita Caswita Dara, Triyana Desmayanasari, Dwi Desrina Hardianti Devy Margaretha Diki Irmawan Dwi Desmayanasari Endah Wulantina Fitria Lestari Fitria Lestari Garda Brendaru Berlin Noprisa, Noprisa Rosari, Anton Suryatul Aini Asyhara Tia Agnesa Triyana Dara Yeni, Endri Zefrizal Nurdin, Zefrizal