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PEMAHAMAN KONSEP SISWA MATERI LARUTAN PENYANGGA DALAM PEMBELAJARAN MULTIPLE REPRESENTASI Alighiri, Dante; Drastisianti, Apriliana; Susilaningsih, Endang
Jurnal Inovasi Pendidikan Kimia Vol 12, No 2 (2018): July 2018
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Materi larutan penyangga banyak mengandung konsep abstrak dan berkaitan erat dengan kehidupan sehari-hari sehingga memerlukan penjelasan dalam berbagai bentuk representasi yang dapat memvisualisasikan materi larutan penyangga sehingga diharapkan siswa dapat mengamati gejala-gejala yang terjadi dan menganalisis serta menarik kesimpulan yang lebih komprehensif. Pembelajaran yang dapat menunjang pembelajaran tersebut adalah pembelajaran multiple representasi. Penelitian ini bertujuan untuk mengetahui dan mendeskripsikan tingkat kemampuan pemahaman konsep siswa pada materi larutan penyangga di kelas XI MIPA SMA Negeri 12 Semarang. Penelitian ini menggunakan pendekatan kuantitatif dengan metode deskriptif dan subyek penelitian kelas XI MIPA SMA Negeri 12 Semarang sebanyak 76 siswa. Data penelitian diperoleh dari tes pemahaman konsep berbentuk three-tier multiple choice yang telah divalidasi. Berdasarkan hasil penelitian diperoleh bahwa pemahaman konsep siswa pada materi larutan penyangga menunjukkan indikator pemahaman konsep belum semua terpenuhi secara maksimal oleh seluruh siswa. Hal tersebut karena indikator penelitian mengklasifikasikan masih tergolong kriteria sedang pada materi larutan penyangga yaitu sebesar 45,53% paham, 31,05% kurang paham, 12,96% miskonsepsi, dan 10,46% tidak paham.

Identification of Misconceptions on Buffer Material Using Three-Tier Test in the Learning of Multiple Representation Drastisianti, Apriliana; Supartono, Supartono; Wijayati, Nanik; Susilaningsih, Endang
Journal of Innovative Science Education Vol 7 No 1 (2018)
Publisher : Postgraduate, Universitas Negeri Semarang, Indonesia

This research was a mixed method with the design of sequential explanatory strategy. This research aims to identify student misconception on buffer solution material and obtain student response to multiple representation-chemoentrepreneurship (entrepreneurship in the chemistry field) teaching materials. Research subjects were 114 students from grade XI MIPA 3, XI MIPA 4, and XI MIPA 5 SMA Negeri 12 Semarang academic year 2017/2018. Three-tier multiple choice diagnostic test obtained from the research data amounted to 20 items, questionnaire to know the student's response to teaching materials, and interview to confirm student's answer. The result of the validation of teaching materials by three validators shows that the teaching materials of multiple representation-chemoentrepreneurship are very suitable to be used in chemistry learning with an average score of 190.33 from 212. The average score of the questionnaire is 28,026 with proper category and reliability of 0.906. The misconception profile obtained is the definition and the properties of the buffer solution 3.421%; the components of buffer solution 2.149%; working principle 2.632%; pH of buffer solution 3.596%; and the role of buffer solution 0.965% with a total misconception 12.763%.

Optimization of Bioethanol Synthesis from Durian Seeds Using Saccharomyces Cerevisiae in Fermentation Process Masturi, Masturi; Alighiri, Dante; Dwijananti, Pratiwi; Widodo, Rahmat Doni; Budiyanto, Saraswati Putri; Drastisianti, Apriliana
Jurnal Bahan Alam Terbarukan Vol 9, No 1 (2020): June 2020 [Nationally Accredited - Sinta 2]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v9i1.23574

Bioethanol is an alternative energy of environmentally friendly as a substitute for petroleum. Sucrose, starch, and fibrous cellulose (lignocellulose) are the main ingredients for bioethanol production. The material is very easy and abundant to get from the waste of agricultural crops. One of these agricultural wastes in Indonesia that have not been used optimally is durian seeds. Durian seeds only become waste and are not commercially useful, even though they contain high carbohydrates, which is possible as a potential new source for bioethanol production. In this work, an experimental study was conducted on bioethanol synthesis from durian seeds through fermentation by Saccharomyces cerevisiae yeast in aerobic fermenter. The process for the production of starch-based bioethanol includes milling, hydrolysis, detoxification, fermentation, and distillation. At the stage of fermentation, variations in the duration of fermentation were applied for 1-11 days. Carbohydrates contained in durian seed flour are 11.541%, which is the largest content. The highest result of ethanol content is 14.72 % (v/v) in 9 day fermentation periods by using Saccharomyces cerevisiae in aerobic conditions. Distillation to enrich bioethanol was carried out by batch vacuum distillation at 68Ã‚Â°C for Ã‚Â± 180 minutes and produced bioethanol with a purity of 95%.

Pembelajaran Berbasis Riset untuk Meningkatkan Kemampuan Multipel Representasi Mahasiswa dalam Memahami Soal HOTS Apriliana Drastisianti; Dante Alighiri
Jurnal Komunikasi Pendidikan Vol 5, No 2 (2021)
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/jkp.v5i2.1041

Mahasiswa pendidikan kimia sebagai calon guru kimia harus menguasai kompetensi guru salah satunya kompetensi pedagogik. Upaya untuk membekali mahasiswa pendidikan kimia agar memiliki kompetensi tersebut salah satunya dengan membuat soal HOTS (Higher Order Thinking Skills) dalam proses pembelajaran. Penelitian ini merupakan penelitian pengembangan dan bertujuan untuk mengetahui kemampuan mahasiswa pendidikan kimia dalam membuat soal HOTS berbasis multipel representasi. Penelitian dilakukan dengan menggunakan prosedur pengembangan Borg & Gall yang berupa 10 tahap, tetapi dibatasi hanya sampai tahap 7. Pengambilan data dilakukan dengan lembar angket, uji coba soal, dan wawancara. Soal-soal yang dibuat oleh mahasiswa dikategorikan berdasarkan ranah kognitif taksonomi Bloom dan diperoleh 40 soal dengan rincian soal ranah C1 30%, C2 17,50%, C3 15%, C4 22,50%, C5 10%, dan C6 5%. Soal dengan kategori HOTS sebanyak 15 soal (37,50%). Soal HOTS tersebut dianalisis lebih lanjut dan diperoleh reliabilitas sebesar 0,78 (tinggi) dan 11 soal memenuhi kriteria sehingga dapat digunakan. Kemampuan multipel representasi mahasiswa dalam menyusun soal HOTS mengalami peningkatan.

Komparasi Hasil Belajar Kimia Menggunakan Pembelajaran Berbasis Penilaian Performens dan Project Based Learning (PjBL) Apriliana Drastisianti; Lis Setiyo Ningrum; Dante Alighiri
JURNAL PENDIDIKAN MIPA Vol 12 No 3 (2022): JURNAL PENDIDIKAN MIPA
Publisher : Pusat Publikasi Ilmiah, STKIP Taman Siswa Bima

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37630/jpm.v12i3.696

Perkembangan ilmu pengetahuan dan teknologi berpengaruh pada bidang pendidikan sehingga diperlukan sumber daya manusia (SDM) yang berkualitas. Salah satu cara meningkatkan kualitas SDM tersebut dengan memperbaiki konsep menghafal yang dipegang teguh oleh siswa. Penelitian ini bertujuan untuk mengetahui hasil belajar kimia yang lebih baik antara pembelajaran berbasis penilaian performens dengan project based learning (PjBL). Populasi penelitian adalah semua siswa kelas XI IPA berjumlah 120 orang. Pengambilan sampel dilakukan dengan cluster random sampling. Penelitian menggunakan metode penelitian kuantitatif. Sampel penelitian terdiri dari dua kelas eksperimen 1 yang menggunakan pembelajaran berbasis penilaian performens dan kelas eksperimen 2 yang menggunakan project based learning (PjBL). Metode pengumpulan data menggunakan dokumentasi dan tes. Instrumen penelitian berupa perangkat pembelajaran dan soal tes hasil belajar kimia. Analisis data yang dilakukan adalah uji normalitas dan homogenitas. Hasil penelitian menunjukkan bahwa berdasarkan uji independent sample t-test nilai signifikansi 0,012 < 0,05 sehingga terdapat perbedaan yang signifikan antara hasil belajar siswa kelas eksperimen 1 dan kelas eksperimen 2.

The Effectiveness of Cognitive Conflict-Based Chemistry Learning in Reducing Students' Misconceptions of Acid-Base Materials Lis Setiyo Ningrum; Apriliana Drastisianti; Hanifah Setiowati; Resi Pratiwi
Jurnal Penelitian Pendidikan IPA Vol 8 No 4 (2022): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i4.2092

A misconception is a problem that is often encountered in the world of education caused by several things, including students' initial prejudices, incompetent teachers, unclear textbooks, different contexts of the student experience, and teaching methods that only contain lectures. This study is intended to answer the problem regarding the effectiveness of cognitive conflict-based chemistry learning in reducing students' misconceptions about acid-base material. This research is quasi-experimental research with One group Pre-test and Post-test Design. The population in this study was all class XI IPA. The sample in this study was class XI IPA I. The instrument used in this study was a student's concept understanding test. The data collection method used is a multiple-choice reasoned test method. Changes in misconceptions were analyzed descriptively and statistically. A descriptive analysis was conducted to see changes in students' concepts. Statistical analysis using the T-test. Based on the research, it was found that the indicators of questions that experienced misconceptions were: Arrhenius acid-base theory (32.05%), Arrhenius acid-base classification (56.40%), Bronsted Lowry theory (43.59%), writing down the acid-base reaction equation according to Bronsted Lowry and Lewis acid-base theory (59.00%), distinguish between Arrhenius, Bronsted Lowry and Lewis acid-base theories (49.00%), the nature of acidic and basic solutions (47.00), degree of acidity/pH (79.00%), determination of strong acid (79.00%), determination of strong base (46.00%), degree of ionization in acid and base determination (46.00%) and application of the concept of pH in pollution (66.00%). Understanding of students' initial conceptions, namely students who are classified as knowing the concept of 23.18%, misconceptions of 53.95%, and not knowing the concept of 22.87%, while the understanding of the final conception of students is students who are classified as knowing concepts of 76, 20%, a misconception of 15.49% and not knowing the concept of 8.31%. Based on these data, it can be concluded that the cognitive conflict learning method is effective in reducing students' misconceptions

3R Training as an Educational Tool to Change Perceptions and Attitudes Towards Waste Management Aisyah Sisilia Pratyaningrum; Arni Dwi Yuni Astuti; Rona Muna Azizi; Safna Fathin Al-Zuhroh; Muchamad Ifan Maulana; Apriliana Drastisianti
PROSIDING SEMINAR NASIONAL PENDIDIKAN, BAHASA, SASTRA, SENI, DAN BUDAYA Vol. 3 No. 1 (2024): Mei : PROSIDING SEMINAR NASIONAL PENDIDIKAN, BAHASA, SASTRA, SENI, DAN BUDAYA
Publisher : Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/mateandrau.v3i1.2061

The waste management training in Johorejo Village aims to increase public awareness and knowledge, especially PKK women to know about the importance of waste management based on the 3R (Reduce, Reuse, Recycle) principle. The type of research used is a descriptive qualitative approach with data collection through interviews and observations. The subjects of this study are all Johorejo residents. This activity includes the delivery of materials, mentoring, and evaluation. The material presented included waste management, 3R principles, identification of types of waste, and the dangers of indiscriminate waste disposal. The results of the training showed an increase in participants' understanding of waste hazards and a change in attitudes that are more concerned about the environment. Participants began to practice the 3R principles and plan further activities such as the creation of a waste bank and a recycling program in the village. The training proved to be effective in raising environmental awareness among participants, with relevant and practical methods, so that they were better prepared to manage waste responsibly.

Analysis of The Use of Analogy of Chemical Education Students on The Concept of Chemical Bond Naqsyahbandi, Fajar; Mulyatun, Mulyatun; Drastisianti, Apriliana; Muhariyansah, Jajang
J-PEK (Jurnal Pembelajaran Kimia) Vol 7, No 2 (2022): J-PEK (JURNAL PEMBELAJARAN KIMIA)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um026v7i22022p058

The analogy is a valuable pedagogical tool for educators because, by using an analogy, abstract concepts in chemistry can be explained effectively. Therefore, prospective educators need to understand analogies. This qualitative descriptive study aims to analyze and describe the analogy used by chemistry education students on the concept of chemical bonds. The test instrument used the form of 10 open-ended questions been validated by anexpert. The results showed three types of analogies: simple analogies, enriched analogies, and extended analogies. This analogy is still single, with the lowest average percentage in the extended analogy type of 5%, while the enriched analogy type is at a percentage of 24%. The analogy type mostly used by students is a simple analogy type with an average percentage of 31 % , and as much as 40% of students do not analogize the existing concept of chemical bonds.

Pembelajaran Berbasis Riset untuk Meningkatkan Kemampuan Multipel Representasi Mahasiswa dalam Memahami Soal HOTS Drastisianti, Apriliana; Alighiri, Dante
Jurnal Komunikasi Pendidikan Vol 5 No 2 (2021): Jurnal Komunikasi Pendidikan
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/jkp.v5i2.1041

Mahasiswa pendidikan kimia sebagai calon guru kimia harus menguasai kompetensi guru salah satunya kompetensi pedagogik. Upaya untuk membekali mahasiswa pendidikan kimia agar memiliki kompetensi tersebut salah satunya dengan membuat soal HOTS (Higher Order Thinking Skills) dalam proses pembelajaran. Penelitian ini merupakan penelitian pengembangan dan bertujuan untuk mengetahui kemampuan mahasiswa pendidikan kimia dalam membuat soal HOTS berbasis multipel representasi. Penelitian dilakukan dengan menggunakan prosedur pengembangan Borg & Gall yang berupa 10 tahap, tetapi dibatasi hanya sampai tahap 7. Pengambilan data dilakukan dengan lembar angket, uji coba soal, dan wawancara. Soal-soal yang dibuat oleh mahasiswa dikategorikan berdasarkan ranah kognitif taksonomi Bloom dan diperoleh 40 soal dengan rincian soal ranah C1 30%, C2 17,50%, C3 15%, C4 22,50%, C5 10%, dan C6 5%. Soal dengan kategori HOTS sebanyak 15 soal (37,50%). Soal HOTS tersebut dianalisis lebih lanjut dan diperoleh reliabilitas sebesar 0,78 (tinggi) dan 11 soal memenuhi kriteria sehingga dapat digunakan. Kemampuan multipel representasi mahasiswa dalam menyusun soal HOTS mengalami peningkatan.

Sosialisasi Perilaku Hidup Bersih Sehat (PHBS) bersama Siswa Siswi SD Negeri Johorejo Kabupaten Kendal Armita Zalfa Salsabila; Elis Sofiatun Nisah; Nurul Mafaza; M Rusydi Khairil Anwar; Rachmawati Choirotunnisa; Apriliana Drastisianti
Masyarakat Mandiri : Jurnal Pengabdian dan Pembangunan Lokal Vol. 1 No. 4 (2024): Oktober: Masyarakat Mandiri : Jurnal Pengabdian dan Pembangunan Lokal
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/masyarakatmandiri.v1i4.512

PHBS in schools is a behaviour to empower students, teachers and the community in the school environment to apply and practice PHBS patterns in order to create a clean and healthy school environment. SD Negeri Johorejo Kendal District is one of the elementary schools located in Johorejo Village, Gemuh Subdistrict, Kendal District. This school rarely receives health counselling on PHBS.The purpose of the study was to increase the knowledge of the entire community in the school environment, especially students and teachers regarding the application of PHBS in the school environment and can practice how to wash hands with soap properly and brush teeth properly. This research uses a qualitative approach method. Based on the results of the study, it was found that there were four activities in the socialisation of PHBS at SD Negeri Johorejo, namely the explanation of material about what PHBS is and the benefits of PHBS, hand washing practice, and tooth brushing practice.

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