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Hydrogen: Jurnal Kependidikan Kimia
Published by IKIP Mataram
ISSN : 23386487     EISSN : 26563061     DOI : -
Core Subject : Science, Education,
Chemistry Education
Hydrogen: Jurnal Kependidikan Kimia diterbitkan oleh Program Studi Pendidikan Kimia yang memuat tulisan yang diangkat dari hasil penelitian dan kajian konseptual di bidang Kimia dan Pendidikan Kimia.
Arjuna Subject : -
Articles 100 Documents
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Pengaruh Model Contextual Teaching and Learning Terhadap Kesadaran Metakognisi Dan Hasil Belajar Siswa Pada Materi Larutan Penyangga Heswandi, Heswandi; Muhali, Muhali; Raehanah, Raehanah
Hydrogen: Jurnal Kependidikan Kimia Vol 3, No 1 (2015): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (613.282 KB) | DOI: 10.33394/hjkk.v3i1.661

Abstract

Tujuan penelitian ini adalah untuk mengetahui pengaruh model Contextual Teaching and Learning terhadap kesadaran metakognisi dan hasil belajar siswa pada materi larutan penyangga. Jenis penelitian ini adalah quasi eksperimental. Popolasi dalam penelitian ini adalah seluruh kelas XI SMAN 1 Terara yang terdiri dari empat kelas. Kelas XI MIA 1 sebagai kelas eksperimen yang dibelajarkan dengan Contextual Teaching and Learning dan Kelas XI MIA 2 sebagai kelas kontrol yang dibelajarkan dengan pembelajaran konvensional. Analisis dari hasil pre-test hasil belajar kelas eksperimen dan kelas kontrol adalah setara, tidak ada perbedaan kemampuan awal antara kedua kelas. Dari hasil pre-test pengukuran kesadaran metakognisi juga tidak ada perbedaan antara kelas eksperimen dan kelas kontrol. Pemberian post-test setelah diberikan perlakuan pembelajaran Contextual Teaching and Learning terhadap kelas eksperimen dan pembelajaran konvensional pada kelas kontrol. Dari hasil perhitungan dan analisis hipotesis diperoleh t-hitung 6,16 dan t-tabel 2,006, hal ini menunjukkan ada pengaruh positif pembelajaran Contextual Teaching and Learning terhadap hasil belajar siswa pada materi larutan penyangga karena thitung > ttabel. Begitu pula dengan post-test kesadaran metakognisi, pada kelas eksperimen mengalami peningkatan dari kategori “Sedang” menjadi “Baik” sedangkan pada kelas kontrol kesadaran metakognisi tetap sama pada kategori “Sedang”. Dan jika dilihat dari persentase ketuntasan klasikal kelas eksperimen lebih tinggi dari kelas kontrol yaitu 40 % dan 17,5 %.
Pengaruh Waktu Adsorpsi Minyak Jelantah Sebagai Bahan Pembuatan Biodiesel Dengan Tanah Liat Terhadap Kualitas Biodiesel Ahmadi, Ahmadi; Suyanti, Ika; Tikrahsari, Sri Astuti; Aini, Miftahul
Hydrogen: Jurnal Kependidikan Kimia Vol 6, No 2 (2018): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (756.533 KB) | DOI: 10.33394/hjkk.v6i2.1606

Abstract

Population growth and industrial development cause oil fuel consumptionincreases, so availability will thinning because it cannot be renewed. So toovercome that the government issued Presidential Decree No.10 of 2006concerning Development of Vegetable Fuels. Biodiesel is one of themrenewable alternative energy sources which are processed from vegetable oilswith use alcohol and NaOH as catalysts through the transesterificationprocess. Used cooking oil is one source of vegetable oil that can used as rawmaterial for making biodiesel through the process transesterification. But theuse of used cooking oil directly without through the adsorption process willaffect the quality of the biodiesel produced. The purpose of this study is todetermine the effect of adsorption time used cooking oil for the quality ofbiodiesel produced from used cooking oil. This research aimed to know thereis or no effect of odsorption time of cooking oil using the clay towardsbiodiesel quality. Object of this research used cooking oil which is adsorptedwith varieties time of adsorption was 0 hour (Control), 12 hours, 36 hoursand 48 hours. Based on the result of research showed that adsorption timehas effect towards quality, where high adsorption time was 12 hours. Qualityof biodiesel has been suitable with SNI. The quality was dencity 0,860 gr/cm3,water degree 0,035% vol, flame coordinate 170oC and acid number 0,71 mgKOH/g oil % the result of biodiesel 55,29%.
APLIKASI PEMBELAJARAN BERBASIS ANDROID PADA MATERI SISTEM PERIODIK UNSUR UNTUK PENINGKATAN PEMAHAMAN KONSEP MAHASISWA Pahriah, Pahriah; Khery, Yusran
Hydrogen: Jurnal Kependidikan Kimia Vol 5, No 1 (2017): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (861.078 KB) | DOI: 10.33394/hjkk.v5i1.105

Abstract

This article describe the development result of android base self learning aplication to help students reach conceptual understanding on elements periodic siystem. In form research and development, it was carred out by ADDIE model. Subject of this research is chemisry education students of IKIP Mataram who fulfill Elementary Chemistry I lectur. Based on research it was concluded that : (1) android base mobile learning media application on elements periodic system subject material was produce and operate successly wity adobe air application support.  Content and design validity of this product are 81.11 % and 83.97 % successively with very aligible category. Practiotioner and small group trial subject respond are 80.83 % and 89.02 % with very eleigible cathegory; (2) this android base application was enhance students elements periodic system conceptual understanding effectively. It was proved by N-gain average of students conceptual understanding enhancment is 0.82 with high category and t-gain value (6.135) larger than ttable(tα = 0.55; dk= 9  = 2.62).
Respon dan Aktivitas Siswa dan Guru Pada Penerapan Perangkat Pembelajaran Asam Basa Dengan Pendekatan Somatis Auditori Visual Intelektual (SAVI) Khery, Yusran; Raodyatun, Raodyatun
Hydrogen: Jurnal Kependidikan Kimia Vol 2, No 1 (2014): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (275.814 KB) | DOI: 10.33394/hjkk.v2i1.644

Abstract

Penelitian ini bertujuan untuk melihat respon dan aktivitas siswa dan guru pada penerapan perangkat pembelajaran asam basa dengan berdasarkan pendekatan Somatis Auditori Visual Intelektual (SAVI) dalam kegiatan pembelajaran di kelas. Metode penelitian yang digunakan ialah pre-experimental design, dan desain penelitian yang digunakan ialah one-shot case study. Instrumen yang digunakan dalam penelitian ini ialah : (1) angket respon siswa; (2) lembar observasi kegiatan guru; (3) lembar observasi kegiatan siswa. Hasil penelitian menunjukkan bahwa: (1) respon siswa terhadap penerapan perangkat pembelajaran asam basa dengan pendekatan SAVI  baik, begitu juga dengan respon guru; (2) aktivitas siswa dan guru pada setiap pertemuan dalam penerapan perangkat pembelajaran asam basa dengan pendekatan Somatis Auditori Visual Intelektual (SAVI)  sangat baik. Berdasarkan hasil tersebut respon guru dan siswa terhadap penerapan perangkat pembelajaran asam basa dengan pendekatan SAVI dalam kelas baik.
Deskripsi Perkembangan Keterampilan Dasar Kerja Laboratorium Kimia Siswa SMA Negeri 1 Singaraja Kartini, Ketut Sepdyana
Hydrogen: Jurnal Kependidikan Kimia Vol 6, No 1 (2018): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (507.799 KB)

Abstract

The aims of this study was to describe the development of basic skills students in achemistry laboratory carrying out the work. This study was conducted using a qualitative approachwith the subject of the research is 603 students consisting of 8 classes of X grade, 7 classes of XIgrade and 7 classes of XII grade. Data were collected with observation papers. The results showedonly 8 out of 10 aspects of the basic skills of laboratory work were observed. Five aspects of skillsclassified into very well categories and three categories of skills aspect quite well.
PENGARUH PEMBELAJARAN KOOPERATIF TIPE TAI BERBASIS CHEMOENTREPRENEURSHIP TERHADAP MOTIVASI BERWIRAUSAHA DAN PENGUASAAN KONSEP SISWA PADAMATERI KOLOID Marwah, Marwah; Dewi, Citra Ayu; Mashami, Ratna Azizah
Hydrogen: Jurnal Kependidikan Kimia Vol 4, No 2 (2016): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (393.5 KB) | DOI: 10.33394/hjkk.v4i2.89

Abstract

The influence of cooperative learning type TAI based on chemoentrepreneurship to entrepreneurship motivation and conceptual understanding of students on colloidal system concept. Colloidal system concept was a concept that requires highly analysis with mastery of concepts that must be understood and require students practice in daily life. Learning will be more meaningful and provide a deep understanding of the learners when learning adapted to the characteristics of the subject matter. One effective solution was implement the cooperative learning type TAI based on chemoentrepreneurship. This study aimed to determine the influence of cooperative learning type TAI based on chemoentrepreneurship to entrepreneurship motivation and conceptual understanding of students. The study design used was pretest-posttest control group design, the sampling technique used cluster random sampling. The population in this study were all students of grade XII IPA SMA AL-Hamzar, Thatwas 50 students were divided into an experimental group of 26 students and a control group of 24 students. Entrepreneurship motivation analysis technique using multivariate test obtained scores of experimental group 63%, 74% and score of control group 66%, 68%. While conceptual understanding data using multivariate test with SPSS 16.0 for windows which scores obtained from initial test and final test on the conceptual understanding was no difference between the experimental group and control group that why used T test. Results obtained there was significant influences of cooperative learning type TAI based on chemoentrepreneurship to entrepreneurship motivation and it had no influence on students' conceptual understanding with sig = 0.304 > 0.05. So it can be concluded that there was no influence of cooperative learning type TAI based on chemoentrepreneurship to conceptual understanding of students.
Analisis Fenol Total Teh Hijau Komersial (Camellia sinensis L) Bayani, Faizul; Mujaddid, Jamilul
Hydrogen: Jurnal Kependidikan Kimia Vol 3, No 2 (2015): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (857.567 KB) | DOI: 10.33394/hjkk.v3i2.691

Abstract

Teh (Camellia sinensis L) berpotensi besar sebagai obat dan pengawet bahan pangan karena mengandung zat antioksidan yaitu katekin dan tannin. Kedua senyawa ini merupakan derivat dari flavonoid serta telah dikenal sebagai fenol. Penelitian ini bertujuan untuk mengetahui ada tidaknya fenol dalam produk komersial teh hijau serta mengukur kadar fenol totalnya menggunakan spektofotometer UV-Vis. Sampel yang digunakan adalah 5 macam produk komersial teh hijau yakni (1) Sampel A ; (2) Sampel B ; (3) Sampel C ; (4) Sampel D ; dan (5) Sampel E. Sampel ini diambil secara acak (random) dari berbagai jenis teh hijau produk komersial yang ada di kota Mataram. Berdasarkan hasil penelitian, rata-rata kadar fenol total dari kelima jenis produk teh hijau berturut-turut adalah 4,618 gr/kg; 4,600 gr/kg; 5,012; 4,906; 4,408. Hasil uji statistik dengan ANAVA satu arah menunjukkan bahwa kadar fenol total dari kelima jenis produk teh tersebut tidak berbeda nyata pada α = 5%, yang ditunjukkan oleh Fhitung = 2,943 yang lebih kecil dari Ftabel (5%) = 3,48. Hal ini disebabkan oleh proses pengolahan teh hijau secara umum relatif sama di setiap perusahaan dan varietas teh yang digunakan sebagai produk juga sama yaitu varietas Assamica.
PENGEMBANGAN PERANGKAT PEMBELAJARAN KIMIA BERORIENTASI MODEL AKTIF BERBASISINKUIRI (ABI) UNTUK PENINGKATAN LITERASI SAINS SISWA Rahmawulan, Linda; Muhali, Muhali; Suryati, Suryati
Hydrogen: Jurnal Kependidikan Kimia Vol 4, No 1 (2016): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (675.243 KB) | DOI: 10.33394/hjkk.v4i1.39

Abstract

Acid-base material and the salt is a chemical material first in the junior and considered difficult by students. In addition, students are less able to associate the material with any problems or phenomena in everyday life. The solution of this problem is to develop a learning device-oriented models based Active Inquiry (ABI). This study aimed to develop a learning device in the form of student activity sheet (LKS) oriented learning model based Active Inquiry (ABI) to improve scientific literacy in acid material bases and salts. This research was the development of the ADDIE model design consisting of five phases: (1) Analyze phase, (2) the define phase, (3) develop phase, (4) the stage of implementation, and (5) evaluation stage. Results of development validator validated by three experts, one validator practitioners, and using the instrument validation of a questionnaire, as well as small group trial to 10 students of class VIII SMPN 4 BatukliangNorth. Quantitative data validation results were analyzed by percentage formula. Qualitative data in the form of comments and suggestions for improvement of the validator was used as consideration to revise the learning device developed. Based on a questionnaire validated by expert appraisal to the learning device development results obtained by the average percentage of expert lecturers, teachers, practitioners, and testing a limited group * 83%, 94,28% and 96.46%. Test the effectiveness of products to increase scientific literacy using the formula N-gain obtained an average of 0.5 where improvement is average. Based on the results obtained, the learning device developed very decent tested in larger groups, and these devices can improve the scientific literacy of students.
Pengaruh Model Pembelajaran Problem Based Learning Berorientasi Chemoenterpreneurship Terhadap Hasil Belajar Kimia Siswa Listari, Erma
Hydrogen: Jurnal Kependidikan Kimia Vol 1, No 2 (2013): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (269.878 KB) | DOI: 10.33394/hjkk.v1i2.630

Abstract

The Effect of Problem Based Learning Model Orientation Chemo Entrepreneurship toward Students Chemistry Learning Result. (Supervised by Suryati and Devi Qurniati) This research is quasi experimental research. The population of this research is consisting of two classes with 65 students. The technic of collecting data is nonprobability sampling. The gambling  technic  is  used  to  decide  the  experimental  class  and  control  class.  By  using gambling technic are decided XI IPA 1 as control class using conventional approach and XI IPA 2 as experimental  class using PBL model orientation CEP. From instruments  25 test items is valid with reliability result is 0,887. The result of the study is (1) the learning process in class using PBL orientation CEP and conventional approach are going well. That is based on the average result of experimental class is 74% and the average result of control class is 71, 35%.  (2) The application  of PBL  orientation  CEP  in colloid  system  has good  effect toward student learning result. That is based on t-count 2,593 > t-table 1, 669 with average cognitive result of experimental class is 76,95 and control class is 69,33. While for affective experimental class is 74,59 and control class 67,29.
Pengaruh Model Discovery Learning Terhadap Keterampilan Berpikir Kritis Siswa SMP Pada Materi Pencemaran Lingkungan Novayani, Sastri; Nufida, Baiq Asma; Mashami, Ratna Azizah
Hydrogen: Jurnal Kependidikan Kimia Vol 3, No 1 (2015): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (273.605 KB) | DOI: 10.33394/hjkk.v3i1.669

Abstract

Pembelajaran IPA banyak menyajikan masalah-masalah yang ada dikehidupan sehari-hari misalkan peristiwa pencemaran lingkungan. Setiap orang membutuhkan keterampilan berpikir tingkat tinggi untuk menghadapi setiap masalah dengan baik. Salah satu bentuk keterampilan berpikir tingkat tinggi adalah keterampilan berpikir kritis. Model yang dapat melatih keterampilan berpikir kritis adalah model discovery learning. Tujuan penelitian ini untuk mengetahui pengaruh model discovery learning terhadap keterampilan berpikir kritis siswa SMP pada materi pencemaran lingkungan. Jenis penelitian ini adalah quasi experimental dengan desain Posttest-only Nonequivalent Control Group Design. Populasi penelitian ini adalah semua kelas VII SMPN 4 Praya Tengah Tahun Pelajaran 2014/2015 yang terdiri atas 2 kelas. Sampel diambil dengan tekhnik sampling jenuh sehingga semua populasi dijadikan sampel. Data hasil penelitian dianalisis menggunakan uji-t pada taraf signifikansi 5 % dengan bantuan SPSS 16.0 For Windows. Hasil analisis diperoleh nilai signifikan data keterampilan berpikir kritis sebesar 0,034. Hal ini menunjukkan bahwa ada pengaruh model discovery learning terhadap keterampilan berpikir kritis siswa pada materi pencemaran lingkungan.

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