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Gagasan Model Pembelajaran Mobile–NOS Untuk Peningkatan Literasi Sains Siswa Yusran Khery; Baiq Asma Nufida; Suryati Suryati; Sri Rahayu; Endang Budiasih
Hydrogen: Jurnal Kependidikan Kimia Vol 6, No 1 (2018): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

This article describes the idea of a mobile learning model - NOS for enhancingstudents' scientific literacy and student responses to these ideas. This article iscompiled based on literature studies, simple observations on several variablessupporting mobile learning at IKIP Mataram, and evaluating prospective userresponses to the development idea using a questionnaire. Respondents were 54students of IKIP Mataram Chemistry education. The response data is processedby percentage formula based on category criteria. Mobile-NOS learning islearning that applies the Nature of Science (NOS) learning steps with the supportof learning media in the form of mobile applications that can be applied in smartmobilephone. The six main steps in implementing learning are oriented to Natureof Science (NOS), namely: (1) Reading the context on electronic articles; (2) Indepthquestioning; (3) Observation of cases and targets; (4) DemonstrationProcedure; (5) Library Search; (6) Implementing Procedures; (7)Communicating Science Knowledge; and (8) Authentic Assessment.The results ofthis study showed an average response to the idea of developing NOS-orientedmobile learning at 85.23% with a very good category.

Pengaruh Ukuran Serbuk Pada Aktivasi Tanah Liat Dari Tanak Awu Terhadap Daya Adsorpsinya Pada Pemurnian Minyak Goreng Bekas Baiq Asma Nufida; Nova Kurnia; Yeti Kurniasih
Hydrogen: Jurnal Kependidikan Kimia Vol 2, No 2 (2014): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

This research was aimed to get the effect of particel size of activated natural clay from Tanak Awu to their adsorption capacity for increase reused cooking oil quality. At previous research we done the activation of natural clay using acid (HCl) and got an optimal concentration of acid at 1 molar. Natural clay was grinding until particel size at 50 mesh, 60 mesh and 100 mesh then it was characterized in specific surface area by methylen blue methods and also acidity surface by acid base titration. Then activated natural clay was applied for purifying reused cooking oil by analyzing water content, acid number and peroxide number. The result showed that there are the effect of particel size of natural clay to acidity surface and specific surface area. While the adsorption capacity of natural clay on purifying reused cooking oil got that optimal particel size of activated natural clay at 60 mesh which getting the decrease of water content, acid number and peroxide number by following reach was 89,13%, 58,61% and 60,52%.

PENGARUH MODEL PEMBELAJARAN TAI DIPADUKAN DENGAN LT TERHADAP INTERAKSI SOSIAL DAN HASIL BELAJAR SISWA Izzatunnisa Izzatunnisa; Baiq Asma Nufida; Hulyadi Hulyadi
Hydrogen: Jurnal Kependidikan Kimia Vol 4, No 1 (2016): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

This research target was toidentify the influence of Team Assisted Individualization (TAI) type of Cooperative Learning Model accompanied with LearningTogether (LT) to student social interaction andstudy result. This was quasi experimental with post-test only control group design. Research subject was 63 student of 10th grade who was divided onto 35 student of experiment group and 28 student of control group. Experiment group was learned by Team Assisted Individualization (TAI) accompanied with LearningTogether (LT) and control group by conventional expository model. There were instrument on this research: (1) treatment instrument consist of Syllabus, RPP (teaching plant), and LKS (work sheet); (2) evaluation instrument consist of RPP observation sheet, social interaction questionnaire, social interaction observation sheet, and achievement test. Data was collected by observation, questionnaire, and test technique. Data was analyzed by descriptive analysis and independent sample t-test through SPSS 16.0 for windows as hypothetic test. Based on questionnaire, student social interaction analysis result showed enhancement between before and after treatment, from 71.67 % to 75.76 %, and based on direct observation, 67.50 %, on good category. Student study result enhancement analysis result was showed by their classical complete study, form 8.57 % to 94.28%, and t-test of study result was divine significance value 0.000 (<0.05), so that Ho was denied and Ha was accepted. So, it was concluded that: (1) Team Assisted Individualization (TAI) type of Cooperative Learning Model accompanied with LearningTogether (LT) was influence to student social interaction; (2) Team Assisted Individualization (TAI) type of Cooperative Learning Model accompanied with LearningTogether (LT) was influence to student study result.

PENGARUH PRAKTIKUM BERWAWASAN LINGKUNGAN DENGAN MODEL INKUIRI TERHADAP SIKAP ILMIAH DAN HASIL BELAJAR Siti Maesarah; Baiq Asma Nufida
Hydrogen: Jurnal Kependidikan Kimia Vol 5, No 2 (2017): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

This study aims to determine the effect of the experiment based environmentalon scientific attitude of the student and learning achievement on acidandalkali subject. This study was quasi-experimental with Posttest-Only ControlGroup Design. The sample consists of two intact group, experimental group(learning by experiment based environmental method) and control group(learning by traditional method) choosen by purposive sampling technic. Datacollection of scientific attitude using questionnaires and observation sheets,while learning outcomes data collected by an objective test. Data analyzedwith descriptive statistic and non parametric statistic (Mann Whitney test).The result show that student’s scientific attitude score of experiment group is83.35 at very high category while the control group is 77.82 at the highcategory. The average score of learning achievement 86.40 for experimentalgroup higher than control groupis 70.87. Beside that Mann-Whitney testobtained sig. less than 0.05 (p <0.005). Thus, it can be concluded that theexperiment based environmental methods affect the scientific attitude andstudent learning achievement on acid-base subject.

Pengaruh Model Discovery Learning Terhadap Keterampilan Berpikir Kritis Siswa SMP Pada Materi Pencemaran Lingkungan Sastri Novayani; Baiq Asma Nufida; Ratna Azizah Mashami
Hydrogen: Jurnal Kependidikan Kimia Vol 3, No 1 (2015): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

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.

Pengembangan Modul Ikatan Kimia dan Bentuk Molekul Berorientasi Nature of Science Untuk Menumbuhkan Literasi Sains Siswa Hifzani Nurwanti; Yusran Khery; Baiq Asma Nufida
Hydrogen: Jurnal Kependidikan Kimia Vol 6, No 2 (2018): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

This development aims to determine the characteristics and feasibility of the oNature of Science (NOS) oriented module On the Chemical Bonds andMolecular Forms subject material through the 4D stage (Define, design,develop and disseminate). This research and development is carried out up tothe stage of development (development) with adjustments based ondevelopment needs. The module prototype was validated by 2 expertvalidator, 1 practitioner validator and 10 students as limited test respondents.Quantitative data were analyzed by percentage formulas and category.Qualitative data in the form of responses and suggestions are used asconsiderations for revisions. The results of expert validation showed anaverage percentage of 92.67% with very good categories of material experts,83.34% with very good categories from product design experts and 76% withgood categories from teacher practitioners. The average response of studentsto the modul prototype is 85.1% with a very good category. This shows thatthe module that developed is feasible to proceed to a large-scale trial phase.

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