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All Journal International Journal of Science and Engineering (IJSE) Biologi Edukasi : Jurnal Ilmiah Pendidikan Biologi Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter Proceedings of Annual International Conference Syiah Kuala University - Social Sciences Chapter JPS Unimus Proceeding of International Conference on Teacher Training and Education Jurnal Ilmiah Mahasiswa Pendidikan Kimia Lantanida Journal Proceedings of the 1st UR International Conference on Educational Sciences JPPS (Jurnal Penelitian Pendidikan Sains) INTERNATIONAL JOURNAL OF EDUCATION, INFORMATION TECHNOLOGY, AND OTHERS Chimica Didactica Acta : Journal of Chemistry and Chemistry Education Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) JIPI (Jurnal IPA dan Pembelajaran IPA)
Habibati Habibati
Department Of Chemistry Education, Faculty Of Teacher Training And Education, University Of Syiah Kuala, Darussalam, Banda Aceh 23111, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Education Engineering Environmental Science Languange, Linguistic, Communication & Media Physics Social Sciences Other

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The Study of High School Student’s Scientific Attitudes on Learning Heat and Temperature with Cooperative Inquiry Labs Model Gani, Abdul; Safitri, Rini; *, Habibati; Saminan, Nurul Fajri
Proceeding of International Conference on Teacher Training and Education Vol 1, No 1 (2016): Proceeding of International Conference on Teacher Training and Education
Publisher : Sebelas Maret University

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Abstract

Scientific attitude is an approach to investigations that benefits from certain traits namely; curiosity or inquisitiveness, objectivity, open-mindedness, perseverance, humility, ability to accept failure, and skepticism. Scientific attitude is one of benchmarks for the success of science learning process especially the level of understanding of the concept of physics. This study aims to analyse the students’ scientific attitude on learning heat and temperature with Cooperative Inquiry Labs (CIL) model at SMAN 6 Banda Aceh. This is a quasi experimental research with the class subject of X-MIA1 as a control class and X-MIA2 as an experimental class. Data collection technique used was by giving a questionnaire containing seven kinds of scientific attitude indicators to each student. The questionnaire in this study used a Likert scale with four categories of responses. Data tabulation was done by testing the average difference of two independent samples, indicated that tcount (10.94) > ttable (2.01) at the significant level of 5%, which means that there are significant differences in outcomes between the experimental and control classes. The results of questionnaire analysis showed that in the control class, there were four scientific attitude indicators which had high category, and the three other indicators were in medium category, whereas in the experimental class, there were five indicators with high category and two indicators with medium category. Based on the data of the analysis result of t test showed the scientific attitude of the students in both classes were tcount = 2.09 which was bigger than ttable = 2.01, and because of the significance of <0.05, it can be said that there was a significant difference after the learning process with CIL model.
The Development of Microsoft Excel-Based Computer Simulation to Improve the Student’s Concept Understanding on Buffer Solutions Khaldun, Ibnu; Hanum, Latifah; Habibati, Habibati
Proceedings of the UR International Conference on Educational Sciences 2018: Proceedings of the 2nd UR International Conference on Educational Sciences
Publisher : Proceedings of the UR International Conference on Educational Sciences

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Abstract

The utilization of computer as a learning media is very important especially in this sophisticated era. With the help of computer, the learning process will run more effectively and efficiently. But in fact, chemistry learning has not been utilizing the IT facilities widely as a medium of learning. The purpose of this study was to determine the feasibility of computer-based simulation learning media on the subject of buffer solution in terms of validity and effectiveness of Microsoft Excel-based computer simulation that was developed to improve the students’ conceptual understanding. Media development method in this research used ADDIE model which includes Analysis, Design, Development, Implementation and Evaluation. The results showed that computer-based learning media simulation of Microsoft Excel on buffer solution in terms of validity was feasible to use. The percentage of media worthiness was 81.00% according to the material experts and 81.57% of the media experts. Microsoft Excel-based computer simulation media developed effectively against conceptual understanding of buffer material. The students’ conceptual comprehension increased with N-gain value 89.17%.
PENGARUH PENERAPAN STRATEGI SCAFFOLDING TERHADAP KETUNTASAN HASIL BELAJAR PESERTA DIDIK SMA NEGERI 4 BANDA ACEH PADA SUBMATERI TATA NAMA SENYAWA HIDROKARBON Nabila, Faizah Muna; Gani, Abdul; Habibati, Habibati
JPPS (Jurnal Penelitian Pendidikan Sains) Vol 6, No 2 (2017)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v6n2.p1310-1316

Abstract

Telah dilakukan penelitian dengan judul pengaruh penerapan strategi scaffolding terhadap ketuntasan hasil belajar peserta didik SMA Negeri 4 Banda Aceh pada submateri tata nama senyawa hidrokarbon. Penelitian ini dilakukan dengan menggunakan pendekatan kuantitatif dengan jenis penelitan eksperimen. Subjek penelitian yaitu kelas XI IPA 2 sebagai kelas kontrol dan XI IPA 3 sebagai kelas eksperimen dengan jumlah peserta didik sebanyak 30 dan 31 orang. Teknik pengumpulan data yaitu tes dan observasi. Instrumen penelitian yang digunakan yaitu berupa soal tes (tes awal dan ulangan harian) serta lembar observasi sikap. Data yang diperoleh diolah dengan menggunakan uji-t untuk membuktikan hipotesis serta rumus persentase. Berdasarkan uji hipotesis hasil yang diperoleh yaitu Ho diterima karena hasil thitung< ttabel yaitu 1,853 < 2,0409. Hasil penelitian menunjukan hasil belajar peserta didik kelas eksperimen sedikit lebih tinggi dari kelas kontrol dengan persentase sebesar 73 > 69,66%. Penilaian sikap secara klasikal diolah dengan menggunakan rumus persentase dengan hasil rata-rata sebesar 74,8% pada kelas eksperimen dan 73,16% pada kelas kontrol. Berdasarkan hasil penelitian ini maka dapat disimpulkan bahwa tidak terdapat pengaruh penerapan strategi scaffolding terhadap ketuntasan hasil belajar peserta didik pada submateri tata nama senyawa hidrokarbon.
Kajian Potensi Produk Pirolisis Limbah Padat Kelapa Sawit Habibati Habibati
Biologi Edukasi: Jurnal Ilmiah Pendidikan Biologi Vol 2, No 1 (2010): Biologi Edukasi: Jurnal Ilmiah Pendidikan Biologi
Publisher : Universitas Syiah Kuala

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Abstract

Telah dilakukan penelitian tentang kajian potensi produk pirolisis limbah padat kelapa sawit. Penelitian ini bertujuan untuk mengetahui potensi produk pirolisis dari cangkang kelapa sawit. Cangkang kelapa sawit mula-mula dipirolisis menggunakan reaktor listrik merk Tube Furnance Type 21100 dan selanjutnya dengan reaktor drum.  Arang  yang diperoleh ditentukan rendemennya dan dikarakterisasi yang meliputi kadar air, abu, zat terbang, karbon terikat, nilai kalor, daya serap terhadap iodin, dan benzena. Struktur arang diidentifikasi dengan spektrometer Fourier Transform Infra Red dan Scanning Electron Microscopy. Cangkang kelapa sawit yang digunakan mengandung 10,58% air. Hasil pirolisis cangkang kelapa sawit pada reaktor listrik dengan suhu 300, 400, dan 500oC diperoleh secara berturut rata-rata rendemen arang 49,17; 42,21; 36,32 (%w/w) sedangkan pada reaktor drum diperoleh rata-rata rendemen arang 38,81 (%w/w). Hasil karakterisasi arang yang dipirolisis dengan reaktor listrik pada suhu 500oC mengandung 3,67% air, sedangkan dengan reaktor drum mengandung 5,33% air. Berdasarkan hasil penelitian, dapat disimpulkan bahwa peralatan yang dibuat dari bahan drum bekas dengan teknologi sederhana diberi nama reaktor drum dan telah terbukti dapat efektif digunakan sebagai reactor pirolisis pada pengolahan cangkang kelapa sawit.
Pyrolisis Temperature Effect to the Biochar Product from Chocolate’s Fruit Skin (Theobroma cacao L.) Abdul Gani Haji; Ibnu Khaldun; . Habibati; Muhammad Nazar; Eka Safrina
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 5, No 1 (2015): Engineering
Publisher : Syiah Kuala University

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Abstract

This research’s aim is to find out the effect of pyrolisis temperature to the biochar product from chocolate’s rind. The sample of rind of 20 kg is come from Indrapuri, Great Aceh. The water level of the sample is determined and then it was pyrolised with pyrolisator at the temperatures of 300, 400, and 500oC. The biochar gotten is then measured its rendemen and characterized which comprised of flying substance level, ash, bonded carbon, nitrogen, phosphor, potassium, and then the chemical substances were identified by using Gas Chromatography-Mass Spectroscopy (GCMS). Pyrolisis product of biochars at the temperatures of 300, 400, and 500oC were gained rendemen of 8.98; 8.45, and 8.35% (w/w) in a row. These biochars have physical appearance of black with brittle texture. It were gained biochars’s characteristic product of water level at 3.93% (300oC), 2.43% (400oC), and 1.50% (500oC) respectively; flying substance level at 47.13% (300oC), 29.58% (400oC) and 25.48% (500oC); ash level at15.70% (300oC), 17.14% (400oC), and 18.02% (500oC), bonded carbon at 37.16% (300oC), 53.37% (400oC), and 56.32% (500oC). The highest level of nitrogen (3.51%) is gained with biochar’s pyrolisis product at the temperature 300oC, meanwhile for the 500 dan 400oC, their nitrogen level are 1.29 and 0.86%. Phosphor level at biochar’s pyrolisis product at the temperature of 300, 400 and 500oC in a row are 0.90; 0.43; 1.39% and potassium level at this biochar are 3.34,4.73, and 4.41% consecutively. GCMS analysis result to the biochar’s pyrolisis product at the temperature of 300oC was identified 40 compounds with their main contents is 4-beta-5-dihydroneronin (22.02%), whereas at the temperatures of 400 dan 500oC respective are identified of 11 and 23 compounds, however their main contents is oleat acid with the level of 62.47 dan 49.84% in a row. It can be concluded that biochar’s characteristics of chocolate’s rind is determined by pyrolisis temperature.
Study Of Feasibility Of Meandg’s (Litsea Sp) Sawdust For The Removal Of Cadmium From Simulated Aqueous Solution Muhammad Nazar; Ibnu Khaldun; Kana Puspita; . Habibati
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 5, No 1 (2015): Engineering
Publisher : Syiah Kuala University

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Abstract

In this research, a series of batch laboratory experiments were conducted to examine the feasibility of Meandg’s (Litsea sp) saw dust for the removal of cadmium from simulated aqueous solution by using adsorption method. The research was carried out by studying the influence of pH of initial solution, contact time, adsorbent dosage, stirring speed, and the initial concentration of cadmium. The sawdust particle size used was 150 mesh and the experiments were conducted at room temperature of 27oC (±2oC). The residual concentration of cadmium from all batch experiments were analyzed using Atomic Adsorption Spectrophotometer (AAS) and each component equilibrium data was analyzed using Langmuir and Freundlich adsorption isotherms. The research findings shown that the optimum conditions are found to be at the pH of 6, the initial concentration of cadmium of 500 ppm with contact time of one hour, 3 gram of sawdust, and the optimum stirring at the speed of 350 rpm. The adsorption capacity of medang sawdust according to Langmuir and Freundlich isotherms are found respectively to be of 2.29 mg/g and 0.55 mg/g.
The Development of Snake Ladder Game Media in Compound’s Nomenclature Subject for Tenth Graders at SMAN 16 Banda Aceh Habibati Habibati; M Hasan; Ria Afriza
Proceedings of AICS - Social Sciences Vol 7 (2017): 7th AIC in conjuction ICMR 2017 Universitas Syiah Kuala October 2017
Publisher : Proceedings of AICS - Social Sciences

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Abstract

 This study aims were to: (1) examine the expediency of snake ladder game media (2) know students’ learning outcome, (3) evaluate the students’ response towards the developed snake ladder game media in compound’s nomenclature subject. The research type used was Research and Development (RD) with ADDIE development model. Data collection techniques used was media expediency questionnaire, observation, the cognitive test, and students’ response questionnaire. The research’s instruments used were media expediency questionnaire sheet, students’ activity observation sheet, test questions, and students’ response questionnaire sheet. The study results were obtained (1) the average percentage of media expediency questionnaire sheet from two validators was 100% which was in very proper category, (2) classically, the percentage of students’ who gained mastery level was 80%, and 3) the average percentage of students’ response was 81,87% within very well category. To conclude, snake ladder game media could increase students’ performance on the subject of compound’s nomenclature.
The Development of Senior High School Students’ Worksheet Based on Chemo-Entrepreneurship (CEP) Approach on the Topic of Colloid Habibati Habibati; Zulfadli Zulfadli; Rizki Amalia
Proceedings of AICS - Social Sciences Vol 6 (2016): Proceeding of 6th AIC in conjuction with ICMSA
Publisher : Proceedings of AICS - Social Sciences

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Abstract

This study aim was to determine the feasibility of the LKS based on CEP approach and to evaluate the response of teachers and students against LKS-based CEP approach. The subjects were 4 chemistry teachers and 27 students of class XI IPA 3 SMAN 9 Banda Aceh that consists of 16 male and 11 female students. This research type was the Research and Development (R D) with 4-D models, namely the define phase, design phase, develop phase, and the disseminate phase. The data was collected through LKS validity test, questionnaires, and observation. The research instrument used was the observation sheets of students’ activities, attitudes and skills; the cognitive test, the questionnaire sheet of teachers’ and students’ response, and LKS. Based on the validation result from 2 validators, the feasibility result of LKS based CEP approach obtained was 94.6%, which can be interpreted very valid. The response of teachers to LKS based CEP approach can be interpreted very well, in which 84.4% gave positive responses and 15.6% gave negative responses. While the students' responses to LKS based CEP approach can also be interpreted  very  well,  where  81% gave  positive  responses and  19% gave  negative responses. Based on the results of this study, it can be concluded that LKS based CEP approach on the colloid topic was well received by the user so that it can be used as a learning material which can trigger the students to be entrepreneur.
Characterization of activated carbon produced from urban organic waste Abdul Gani Haji; Gustan Pari; Muhammad Nazar; H Habibati
International Journal of Science and Engineering Vol 5, No 2 (2013)
Publisher : Chemical Engineering Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1413.595 KB) | DOI: 10.12777/ijse.5.2.89-94

Abstract

The difficulties to decompose organic waste can be handled naturally by pyrolisis so it can  decomposes quickly that produces charcoal as the product. This study aims to investigate the characteristics of activated carbon from urban organic waste. Charcoal results of pyrolysis of organic waste activated with KOH 1.0 M at a temperature of 700 and 800oC for 60 to 120 minutes. Characteristics of activated carbon were identified by Furrier Transform Infra Red (FTIR), Scanning Electron Microscopy (SEM), and X-Ray Diffraction (XRD). However, their quality is determined yield, moisture content, ash, fly substances, fixed carbon, and the power of adsorption of iodine and benzene. The identified functional groups on activated carbon, such as OH (3448,5-3436,9 cm-1), and C=O (1639,4 cm-1). In general, the degree and distance between the layers of active carbon crystallites produced activation in all treatments showed no significant difference. The pattern of activated carbon surface topography structure shows that the greater the pore formation in accordance with the temperature increase the more activation time needed. The yield of activated carbon obtained ranged from 72.04 to 82.75%. The results of characterization properties of activated carbon was obtained from 1.11 to 5.41% water, 13.68 to 17.27% substance fly, 20.36 to 26.59% ash, and 56.14 to 62.31% of fixed carbon . Absorption of activated carbon was good enough at 800oC and 120 minutes of activation time, that was equal to 409.52 mg/g of iodine and 14.03% of benzene. Activated carbon produced has less good quality, because only the water content and flying substances that meet the standards.Doi: 10.12777/ijse.5.2.89-94 [How to cite this article: Haji, A.G., Pari, G., Nazar, M., and Habibati.  (2013). Characterization of activated carbon produced from urban organic waste . International Journal of Science and Engineering, 5(2),89-94. Doi: 10.12777/ijse.5.2.89-94]
Pengaruh Penerapan Strategi Scaffolding Terhadap Ketuntasan Hasil Belajar Peserta Didik SMA Negeri 4 Banda Aceh Pada Submateri Tata Nama Senyawa Hidrokarbon Faizah Muna nabila; Abdul Gani; . Habibati
Jurnal Ilmiah Mahasiswa Pendidikan Kimia Vol 2, No 2 (2017): May 2017
Publisher : Jurnal Ilmiah Mahasiswa Pendidikan Kimia

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Abstract

AbstrakTelah dilakukan penelitian dengan judul pengaruh penerapan strategi scaffolding terhadap ketuntasan hasil belajar peserta didik SMA Negeri 4 Banda Aceh pada submateri tata nama senyawa hidrokarbon. Jenis penelitian ini yaitu eksperimen dengan pendekatan kuantitatif.. Subjek penelitian yaitu kelas XI IPA 2 sebagai kelas kontrol dan XI IPA 3 sebagai kelas eksperimen yang berjumlah 30 dan 31 orang. Teknik pengumpulan data yaitu tes dan observasi. Instrumen penelitian yang digunakan yaitu berupa soal tes (tes awal dan ulangan harian) serta lembar observasi sikap. Data yang diperoleh diolah dengan menggunakan uji-t untuk membuktikan hipotesis serta rumus persentase. Berdasarkan uji hipotesis hasil yang diperoleh yaitu Hoditerima karena hasil thitung ttabel yaitu 1,853 2,0409. Hasil penelitian menunjukan hasil belajar peserta didik kelas eksperimen sedikit lebih tinggi dari kelas kontrol dengan persentase sebesar 73 69,66%. Penilaian sikap secara klasikal diolah dengan menggunakan rumus persentase dengan hasil rata-rata sebesar 74,8% pada kelas eksperimen dan 73,16% pada kelas kontrol. Berdasarkan hasil penelitian ini maka dapat disimpulkan bahwa tidak terdapat pengaruh penerapan strategi scaffolding terhadap ketuntasan hasil belajar peserta didik pada submateri tata nama senyawa hidrokarbon.Kata kunci : Scaffolding, Ketuntasan Hasil Belajar, Tata Nama Senyawa Hidrokarbon.AbstractIt has conducted the research entitled, “The Effect of Implementation of Scaffolding Strategy in Students’ Learning Outcomes in Nomenclature of Hydrocarbons Subject at SMAN 4 Banda Aceh”. This research was conducted by using quantitative approach and the type of this research was experimental research. The subject of this research was class XI IPA 2 as control class and XI IPA 3 as experimental class, which consist of 30 students and 31 students. The technique of data collection of this research was the test and observation. Meanwhile, the research instrument of this study was test (pre-test, daily test, and observation sheet attitudes of the students). The data analyzed by using t-test and formula to prove the hypothesis. Based on the hypothesis, Ho is accepted since t-value is 1,853 2,0409. The result showed that the percentage of the experimental class students’ learning outcomes is 73,15  greater than control class that is 69,66% with an average value is 2,82 and 2,78. The ratting attitudes of the students processed by using the formula, which the result is 74,8 in the eksperimental class and 73,16% in the control class. Based on the result, it can be concluded that there is no significant improvement in the students’ learning outcomes in the nomenclature of hydrocarbon subject.Key Words : Scaffolding, Students’ Learning Outcomes, Nomenclature of Hydrocarbons.
Co-Authors . Rusman A.A. Ketut Agung Cahyawan W Abdul Gani Abdul Gani Abdul Gani Haji Ade Ismayani Arisna Maulina Asmaul Husna Dhea Ulhaq Eka Safrina Erlidawati Erlidawati Faizah Muna nabila Faizah Muna Nabila Gani, Abdul Gustan Pari Ibnu Khaldun Ibnu Khaldun Isyqa Silma Kana Puspita Kana Puspita Latifah Hanum Latifah Hanum M Hasan M Hasan M. Hasan M. nasir Mardia Julianda Mareza Diantari Muhammad Nasir Muhammad Nazar Muhammad Nazar Muhammad Nazar Nabila, Faizah Muna Nelva Rahmatul Fitri Ninda Yunistika Nurul Fajri Saminan, Nurul Fajri Putri Dewi Septiani Putri zuliani Rahmad Rizki Fazli Ria Afriza Rizki Amalia Sri Winarni Syukratun Nufus Uci Sulfia Zulfadli Zulfadli Zulfadli Zulfadli