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All Journal Jurnal Penelitian dan Pengembangan Pendidikan Jurnal Ilmu Dasar Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Pengabdian Magister Pendidikan IPA Journal of Classroom Action Research Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Jurnal Pijar MIPA Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Jurnal Pendidikan dan Pengabdian Masyarakat
Agus Abhi Purwoko
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics Other

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Nyale Sea Worm As Antibacterial Substances Dwi Soelistya Dyah Jekti; Agus Abhi Purwoko; Zainul Muttaqin
Jurnal ILMU DASAR Vol 9 No 2 (2008)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (200.442 KB)

Abstract

Nyale is a sea worm that belongs to class of polychaete. It appears on a huge crowd, usually five days after the monsoon in February, at the surface of the sea for breeding. The colors of the female and male worms are green and brown, respectively. The worms are collected in nyale season, freezed-dryer, and extracted with ethyl acetate. Antimicrobial activity properties of the male worm extract are carried out toward benthos bacteria and clinical isolate bacteria using ciprofloxacin as comparing agent. The results show that, after colom chromatography, fraction number 1 and 4 have the best antibacterial activities (broadest spectrum) toward clinical isolate bacteria. All eleven fractions show also antibacterial activities toward nine benthos bacteria. The minimum inhibitory concentration (MIC) of fractions 1 and 4 toward six clinical isolate bacteria is 100 μg/ml. Meanwhile, fraction 4 exhibits two peaks in its HPLC chromatrogram.
OPTIMASI SIFAT INHIBITOR KOROSI SENYAWA THIAAMIDA-PIRAZOLINDOL BERDASARKAN TEORI FUNGSIONAL KERAPATAN Saprini Hamdiani; Jannatin Arduha; Agus Abhi Purwoko; Saprizal Hadisaputra
Jurnal Pijar Mipa Vol. 11 No. 1 (2016): Maret
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (493.94 KB) | DOI: 10.29303/jpm.v11i1.4

Abstract

Abstrak. Sifat inhibitor korosi senyawa turunan thiaamida-pirazolindol (TP) telah dikaji menggunakan teori fungsional kerapatan pada tingkatan teori B3LYP/6-31G(d). Pengaruh gugus substitusi pendonor dan penarik elektron (NH2, SH, CHCH2, CH3, OH, CHO, COOH, F, NO2) terhadap efisiensi anti korosi senyawa thiaamida-pirazolindol juga dihitung. Parameter kuantum untuk senyawa anti korosi seperti energi orbital (EHOMO dan ELUMO), potensial ionisasi (I), afinitas elektron (A) dan elektronegativitas (χ) memiliki hubungan yang linier dengan efisiensi anti korosi (IE%) senyawa turunan thiaamida-pirazolindol. Gugus pendonor elektron meningkatkan nilai IE%. Urutan kenaikan IE% adalah NO2 < CHO < COOH < F < CHCH2 < OH < CH3 < NH2. Penambahan gugus pendonor elektron amina (NH2) meningkatkan IE% hingga 98,76 % dibandingkan IE% thiaamida-pirazolindol murni 90,80 %. Penambahan gugus penarik elektron menurunkan IE% hingga mencapai 82,82 %. Kajian teoritis ini akan berkontribusi besar dalam mendesain dan sintesis senyawa inhibitor organik dengan efisiensi inhibitor tinggi.Kata kunci: inhibitor korosi, teori fungsional kerapatan, thiaamida-pirazolindolAbstract. Corrosion inhibitor properties of thiamide pyrazolindole and its derivatives has been elucidated by means of density functional theory (DFT) at B3LYP/6-31G(d) level of theory. Effect of electron donating and withdrawing groups such as NH2, SH, CHCH2, CH3, OH, CHO, COOH, F and NO2 on the corrosion inhibitor of thiamide pyrazolindole derivatives also have been studied. The quantum chemical parameters such as the frontier orbital energies (EHOMO), ionization potential (I), electron affinity (A) and electronegativity (χ) are closely related to the corrosion inhibition efficiency (IE%) of thiamide pyrazolindole derivatives. The presence of electron donating groups increases IE% values meanwhile electron withdrawing groups reduce IE% values. The enhancement of IE% follows NO2 < CHO < COOH < SH < F < CH3 < CHCH2 < OH < NH2. Electron donating NH2 group gives 98,76 % of IE%, pure thiamide pyrazolindol IE% = 90,80 %. In contrast, electron withdrawing NO2 group gives IE% only 82,82 %. This theoretical study would have a significant contribution in designing high-efficiency organic corrosion inhibitors.Keywords: corrosion inhibitors, density functional theory, thiamide pyrazolindol
HUBUNGAN IKLIM KELAS DAN SIKAP SISWA TERHADAP PELAJARAN KIMIA DENGAN PRESTASI BELAJAR KIMIA SISWA KELAS XI IPA SMA NEGERI SE-KOTA MATARAM TAHUN PELAJARAN 2012/2013 Siti Elsi Pritami; Agus Abhi Purwoko; Lalu Rudyat Telly Savalas
Jurnal Pijar Mipa Vol. 9 No. 2 (2014): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (44.347 KB) | DOI: 10.29303/jpm.v9i2.48

Abstract

Abstrak: Penelitian ini bertujuan untuk  mengetahui hubungan:  (a) iklim  kelas dengan prestasi belajar siswa; (b) sikap siswa terhadap pelajaran kimia dengan prestasi belajar siswa; (c)iklim kelas dan sikap siswa secara bersama dengan prestasi belajar siswa. Populasi dalam penelitian ini seluruh siswa kelas XI IPA SMA Negeri se-Kota Mataram yang berjumlah 1590 siswa, sedangkan sampelnya diambil dari 4 sekolah dengan proporsi sebesar 15% dari total siswa kelas XI IPA. Teknik penentuan anggota sampel adalah multistage random sampling dan diperoleh sampel sebanyak 118 siswa. Teknik pengumpulan data yang digunakan yaitu teknik angket untuk data iklim kelas dan sikap belajar siswa, sedangkan untuk data prestasi belajar siswa menggunakan teknik dokumentasi hasil ujian semester genap siswa tahun pelajaran 2012/2013. Hasil analisi skorelasi tunggal pertama antara iklim kelas dengan prestasi belajar siswa diperoleh thitung (2,66) >ttabel (1,66) pada taraf signifikansi 5%, artinya iklim kelas memiliki hubungan positif dan signifikan dengan prestasi belajar siswa. Hasil analisis korelasi tunggal kedua antara sikap siswa terhadap pelajaran kimia dengan prestasi belajar siswa diperoleh thitung (2,90) >ttabel (1,66) pada taraf signifikansi 5%, artinya sikap siswa terhadap pelajaran kimia memiliki hubungan positif dan signifikan dengan prestasi belajar siswa. Hasil analisis korelasi ganda antara iklim kelas dan sikap siswa secara bersama dengan prestasi belajar siswa diperoleh Fhitung (5,69) >Ftabel (3,08) pada taraf signifikansi 5%, artinya iklim kelas dan sikap siswa secara bersama memiliki hubungan positif dan signifikan dengan prestasi belajar siswa.Kata-kata kunci: Hubungan, Iklim Kelas, Sikap Siswa, Prestasi Belajar Siswa. Abstract: This study aims to explore the relationship between: (a) classroom climate and students’ achievement; (b) student’s attitude on learning chemistry and student’s achievement; (c) classroom climate and student’s attitude all together and student’s achievement. The population are all the students of grade XI science program at state high schools in Mataram that consist of 1590 students, while the sample was taken from 4 schools with the proportion of 15%from the total number of students in each school. This study employed multistage random sampling and it was obtained 118 students as samples. Questioner technique was employed to collect the data of classroom climate and student’s attitude while documentation technique was applied to gather the data of student’s achievement of the second term examination result in academic year 2012/2013. Single corelation analysis between classroom climate and student’s achievement resulted in a higher tobserved than ttable (2.66 and 1.66, respectively) at 5% significance level, which means that classroom climate has a positive and significant corelation with students’ achievement. The next single corelation analysis between student’s attitude in chemistry and student’s achievement revealed a higher tobserved than ttable (2.90 and 1.66, respectively) at 5% significance level, which means that student’s attitude in chemistry has a positive and significant corelation with student’s achievement. Finally, a double corelation analysis between classroom climate and student’s attitude all together with student’s achievement resulted in Fobserved of 5.69 which is higher than Ftable (3.08) at 5% significance level. It suggested that classroom climate and student’s attitude all together have positive and significant corelation with students’ achievement.Keywords: Corelation, Classroom climate, Student’s attitude, Student’s achievement.
PENGARUH MODEL JEMBATAN ANALOGI TERHADAP PEMAHAMAN ASPEK MIKROSKOPIK SISWA DENGAN GAYA BELAJAR BERBEDA PADA MATERI PELAJARAN KIMIA Baiq Asma Nufida; Muntari Muntari; Agus Abhi Purwoko
Jurnal Pijar Mipa Vol. 8 No. 1 (2013): Maret
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (248.802 KB) | DOI: 10.29303/jpm.v8i1.55

Abstract

Abstrak: Tujuan dari penelitian ini adalah untuk mengetahui: (1) pengaruh model implementasi jembatan analogis pada pemahaman mikroskopis siswa, (2) pengaruh gaya belajar siswa pada pemahaman mikroskopis siswa, dan (3) interaksi model Bridge analogis dan siswa gaya belajar terhadap pemahaman mikroskopis siswa. Ini adalah studi eksperimental semu dengan non setara pre-test post-test desain kelompok kontrol dan 2 x 3 desain analisis faktorial. Populasi penelitian ini adalah 206 siswa dari XI IPA di SMAN 2 Praya didistribusikan dalam empat kelompok belajar. Dua kelompok alami utuh dengan kemampuan setara sebelum terpilih sebagai sampel. Mereka dipilih secara acak sebagai kelompok eksperimen dan kelompok kontrol, maka XI IPA 4 didefinisikan sebagai kelompok eksperimen (perlakuan model Bridge analogis) dan XI IPA 3 didefinisikan sebagai kelompok kontrol (diobati dengan model konvensional). Instrumen penelitian ini adalah mikroskopis pemahaman siswa tes dan angket gaya belajar siswa. Data pemahaman mikroskopis siswa dikumpulkan dari skor tes siswa sedangkan data tentang gaya belajar siswa yang dikumpulkan dari kuesioner. Analisis data menggunakan analisis kovariannya (ANCOVA) dengan pre-test skor sebagai kovariannya. Semua data diasumsikan normal, linier dan homogen. Beda Nyata Terkecil (LSD) digunakan sebagai analisis Post. Analisis statistik menunjukkan bahwa model Bridge Analogical tidak berpengaruh secara signifikan terhadap pemahaman mikroskopis siswa (p> 0,05). Gaya belajar siswa, namun secara signifikan mempengaruhi pemahaman mikroskopis siswa (p <0,05). Interaksi model Bridge analogis dan gaya belajar yang secara signifikan mempengaruhi pemahaman mikroskopis siswa (p <0,05). Analisis post menunjukkan bahwa model Bridge Analogical paling baik diterapkan pada kelompok mahasiswa belajar gaya visual.Kata Kunci: representasi mikroskopis, analogi; gaya belajar Abstract: The aims of this study are to find out: (1) the influence of Analogical Bridge model implementation on student’s microscopic comprehension; (2) the influence of student’s learning style on student’s microscopic comprehension; and (3) the interaction of Analogical Bridge model and student’s learning style on student’s microscopic comprehension. It is a quasy experimental study with non equivalent pre-test post-test control group design and 2 x 3 factorial analysis design. The population of this study are 206 students of the XI IPA in SMAN 2 Praya distributed in four study group. Two naturally intact group with equivalent prior abilities are selected as the sample. They are randomly selected as experimental group and control group, then XI IPA 4 is defined as an experimental group  (treated by Analogical Bridge model) and XI IPA 3 is defined as a control group (treated by conventional model). Instruments of this study are student’s microscopic comprehension test and student’s learning style questionnaire. Data of student’s microscopic comprehension are collected from student’s test score while data about student’s learning style are collected from questionnaires. Data analyze using analysis of covarian (ancova) with pre-test score as covarian. All data are assumed normal, linier and homogenous. Least Significant Difference (LSD) is used as a Post analysis. Statistical analysis shows that Analogical Bridge model is not significantly influence the student’s microscopic comprehension (p > 0.05). Student’s learning style, however is significantly influence the student’s microscopic comprehension (p < 0.05). Interaction of Analogical Bridge model and learning’s style are significantly influence the student’s microscopic comprehension (p < 0.05). Post analysis shows that Analogical Bridge model is best applied on group of visual learning style student.Keyword: microscopic representation; analogy; learning style
PENGARUH MODEL QUANTUM LEARNING MENGGUNAKAN LKS TERHADAP HASIL BELAJAR SISWA KELAS XI SMAN 2 MATARAM Dyah Puspitasari Ningthias; Jeckson Siahaan; Agus Abhi Purwoko
Jurnal Pijar Mipa Vol. 13 No. 2 (2018): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (218.08 KB) | DOI: 10.29303/jpm.v13i2.745

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh Model Quantum Learning menggunakan LKS terhadap hasil belajar siswa pada materi koloid kelas XI IPA SMAN 2 Mataram tahun ajaran 2014/2015. Jenis penelitian adalah eksperimen semu (quasi experiment) dengan desain pretest-posttest-non-equivalent control group. Populasi terdiri atas 6 kelas XI IPA yakni, kelas XI IPA 1 - Kelas XI IPA 6. Sampel sebanyak dua kelas  (sebanyak 75 orang siswa) ditentukan dengan cara tidak random, yakni kelas XI IPA 2 sebanyak 37 orang siswa sebagai kelas kontrol dan kelas XI IPA 5 sebanyak 38 orang siswa sebagai kelas eksperimen. Hasil uji pretest diperoleh nilai rata-rata kelas kontrol sebesar 28,38 dan kelas eksperimen sebesar 28,03 menunjukkan bahwa tidak ada perbedaan yang signifikan antara kelas XI IPA 2 dan kelas XI IPA 5. Hasil uji posttest diperoleh nilai rata-rata kelas kontrol sebesar 50,82 dan kelas eksperimen sebesar 46,42. Data-data tersebut dianalisis menggunakan uji Anakova dengan menggunakan data pretest sebagai kovariat. Hasil perhitungan diperoleh Fhitung (1,74) < Ftabel (3,9) pada taraf signifikan 5%, menunjukkan model quantum learning menggunakan LKS tidak memberikan pengaruh yang signifikan terhadap hasil belajar siswa pada materi koloid. Artikel ini menyajikan data kuantitaf dan data kualitatif yang dapat menjelaskan mengenai pengaruh model quantum learning menggunakan LKS terhadap hasil belajar siswa.
PENGARUH MODEL PEMBELAJARAN BERBASIS MASALAH (PBM) DALAM SETTING PEMBELAJARAN KOOPERATIF TIPE TGT DAN GI TERHADAP KETERAMPILAN BERPIKIR KRITIS DAN HASIL BELAJAR KIMIA PESERTA DIDIK SMAN 1 AIKMEL Baiq Ismayawati; Agus Abhi Purwoko; Muntari -
Jurnal Penelitian Pendidikan IPA Vol. 2 No. 1 (2016): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v2i1.33

Abstract

This study aims to describe the differences in critical thinking skills and chemistry learning achievement between learners who follow the model of problem-based learning (PBL) in cooperative learning settings TGT and GI at the rate of material reaction. The research is a quasi-experimental research design with pretest-posttest non equivalent control group designe with sample XI IPA 1 and XI IPA 2 are determined by random selection technique based on similarity mean value of daily tests I. Experiential learning and learner response is estimated to affect more significant learning achievement in the classroom PBM setting GI as evidenced by the average N-Gain learning outcomes in the classroom PBM setting GI of 0.43 and the average N-Gain learning achievement in the classroom PBM setting TGT of 0.32. The differences are also evidenced by the results of the hypothesis test showed a significance value of 0.002 (p <0.05). While based on the calculation of the average critical thinking skills in mind that PBM setting TGT has a more significant effect than the PBM GI settings as evidenced by the difference in the value of critical thinking skills after learning process (posttest) and prior to the learning process (pretest) on PBM classroom setting TGT and PBM GI settings are respectively 19.93 and 14.42. While the test is based on differences in critical thinking skills, it is known that there are differences between classes of critical thinking skills PBM settings TGT and PBM settings GI as evidenced by the significant value of 0.018 (p <0.05).Keywords: PBM setting TGT, PBM setting GI, critical thinking skills, learning achievement of chemistry.
PENERAPAN PEMBELAJARAN INVESTIGASI KELOMPOK UNTUK MENINGKATKAN KETERAMPILAN PROSES SAINS DITINJAU DARI INTELLIGENCE QUOTIENT SISWA Raudatus Solihah; Agus Abhi Purwoko; Erin Ryantin Gunawan
Jurnal Penelitian Pendidikan IPA Vol. 2 No. 2 (2016): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v2i2.39

Abstract

This research aims to know the effect of group investigation learning on student’s science process skill based on their IQ in SMAN 1 Mataram for eleventh grade students. This is a quasi experimental study using pretest postest control group design design. Pretest was taken to get data of student’s IQ. Posttest was also conducted to measure student’s science process skill. Sample was taken using nonprobability sampling from the population of eleventh grade student in SMAN 1 Mataram.The sample was two group of student each from two class, class XI sains 6 and as experimental group and class XI sains 5 as control group. The average os Student’s IQ on experimental group and control group were equal, both at 112. Learning processes were 12 x 45 minutes long in total. The experimental group showed better average score on posttest where they scored 82.40 on average, while control group only scored 74.83 on average. This value is statistically significant, at p = 0.007, less that 0.005. This result shows that implementation of group investigation can increase student’s science process skill.Keywords: Group investigation, science process skill, intelligence Quotient (IQ)ABSTRACT
PENGEMBANGAN BIOSORBEN DARI RUMPUT LAUT Sargassum sp. UNTUK REMEDIASI TEMBAGA Suriadi Suriadi; Erin Ryantin Gunawan; Agus Abhi Purwoko
Jurnal Sains dan Terapan Kimia Vol 6, No 2 (2012)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (408.567 KB) | DOI: 10.20527/jstk.v6i2.2110

Abstract

Telah dilakukan penelitian pengembangan biosorben rumput laut Sargassum sp. dengan perlakuan aktivasi asam sulfat untuk remediasi Cu. Penelitian meliputi aktivasi rumput laut dengan perlakuan konsentrasi asam sulfat dan waktu aktivasi , kurva isotherm serta kapasitas biosorpsi. Pengujian kemampuan biosorben dilakukan terhadap larutan Cu(II) 200 ppm dengan pH 4,5. Hasil penelitian menunjukkan bahwa proses aktivasi yang paling optimal adalah dengan menggunakan asam sulfat 0,05 M selama 20 menit, dimana biosorben teraktivasi yang dihasilkan memiliki kapasitas biosorpsi sebesar 61,4733 mg/g. Kata kunci : biosorben teraktivasi asam, remediasi tembaga . 
Pelatihan Penyusunan Instrumen Keterampilan Berpikir Tingkat Tinggi Bagi Pendidik Mata Pelajaran IPA SMP Di Kota Mataram Jamaluddin Jamaluddin; Yayuk Andayani; Agus Abhi Purwoko
Jurnal Pengabdian Magister Pendidikan IPA Vol 1 No 1 (2018)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (193.779 KB) | DOI: 10.29303/jpmpi.v1i1.223

Abstract

Abstrak. Tujuan dari kegiatan pengabdian pada masyarakat ini adalah untuk: 1) meningkatkan kompetensi pedagogik pendidik tentang prosedur penyusunan instrument  berpikir tingkat tinggi peserta didik pada pembelajaran IPA SMP; 2) memberikan pelatihan kepada para pendidik IPA dalam mengembangkan instrument keterampilan berpikir tingkat tinggi peserta didik melalui pembelajaran  IPA SMP di Kota Mataram. Melalui kegiatan pengabdian pada masyarakat dalam bentuk presentasi, diskusi, dan pelatihan kepada para pendidik IPA diharapkan dapat: 1) memberikan manfaat secara praktis bagi upaya peningkatan pembelajaran IPA yang berorientasi peningkatan keterampilan berpikir tingkat tinggi peserta didi; 2) hasil kegiatan pengabdian ini berupa deskripsi prosedur tentang pengembangan instrument keterampilan berpikir tingkat tinggi peserta didik melalui pembelajaran IPA yang diharapkan dapat dapat mengembangkan kompetensi pedagogik pendidik IPA yang terlibat dalam kegiatan pengebdian ini; 3) instrumen yang dikembangkan melalui kegiatan ini secara praktis dapat  digunakan oleh para pendidik merencanakan dan melaksanakan penilaian hasil pembelajaran IPA yang berorientasi pada upaya peningkatan keterampilan berpikir tingkat tinggi peserta didik. Kegiatan pengabdian pada masyarakat ini dilaksanakan dengan langkah-langkah sebagai berikut: 1) memberikan pemahaman kepada pendidik IPA tentang pentingnya peningkatan keterampilan berpikir tingkat tinggi peserta didik dalam kaitannya dengan era komunikasi dan informasi dewasa ini; 2) memberikan pelatihan kepada pendidik IPA tentang prosedur penyusunan instrument keterampilan berpikr tingkat tinggi peserta didik. Metode yang digunakan dalam pelaksanaan kegiatan pengabdian pada masyarakat ini adalah metode observasi, diskusi informasi, pelatihan menyusun instrument keterampilan berpikir tingkat tinggi peserta didik. Hasil yang diperoleh melalui kegiatan pengabdian pada masyarakat ini adalah Para pendidik IPA SMP di Kota Mataram yang terlibat dalam kegiatan PPM ini telah memiliki pemahaman dan keterampilan dalam  penyusunan instrument  untuk mengukur keterampilan berpikir tingkat tinggi peserta didik melalui pembelajaran IPA SMP di Kota Mataram. Kata Kunci: Berpikir Tingkat Tinggi, Kompetensi pedagogik, Instrumen Keterampilan Berpikir
The Validity and Reliability of Electronic Students’ Worksheet Based on Discovery Learning on Thermochemical Topic I Gede Karunia Soenarko; Agus Abhi Purwoko; Saprizal Hadisaputra
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 10, No 1: January 2022
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1647.218 KB) | DOI: 10.33394/j-ps.v10i1.4863

Abstract

This study aims to evaluate an electronic student worksheets product based on discovery learning that valid and reliable on thermochemical topic. The development of electronic student worksheets-based on discovery learning follows the steps of the 4D development model, namely define, design, develop, disseminate. The feasibility test of the developed learning device was analyzed using a validation sheet. The assessment of the feasibility of the learning tools developed was carried out by three expert validators who are competent in the field of education at the University of Mataram. Criticisms and suggestions given by the validator are used as improvements to the developed electronic student worksheets. Data analysis was carried out using descriptive percentage techniques, Aiken's V index, and percentage of agreement. The validation results show that the developed electronic student worksheets component is included in the valid category with an average validity value of 0.79. The results of the agreement between validators showed that the developed electronic student worksheetshad a percentage of more than 75% which was included in the reliable category. Based on the results of the validation and reliability tests, the electronic student worksheets based on discovery learning developed can be concluded to be valid and reliable. A more complete and detailed explanation of the development of electronic student worksheets based on discovery learning and validation results is presented in this article.
Co-Authors AA Sukarso Aliefman Hakim Ansumarwaty, Febiyanti Baiq Asma Nufida Baiq Endah Hurairah Baiq Ismayawati Burhanuddin Dwi Soelistya Dyah Jekti Dyah Puspitasari Ningthias Eka Netia Lestari Erin Ryantin Gunawan I Gede Karunia Soenarko Imam Bachtiar Jamaluddin Jamaluddin Jannatin Arduha Jeckson Siahaan Joni Rokhmat Lalu Rudyat Telly Savalas LALU RUDYAT TELLY SAVALAS Liswijaya Muhtar Haris Mukhtar Haris Muntari - Muntari Muntari Muntari Muntari Raudatus Solihah Saprini Hamdiani Saprizal Hadisaputra Satutik Rahayu Siti Elsi Pritami Suriadi Suriadi Sya’ban Putra Adiguna Wildan Wildan Yayuk Andayani Yayuk Andayani Zainul Muttaqin