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PENGEMBANGAN BUKU SUPLEMEN KIMIA BAHAN ALAM BERBASIS LOCAL CONTENT PADA TANAMAN GENUS PREMNA SEBAGAI ANTIMIKROBA . Isti’anah; Dini Hadiarti; Tuti Kurniati
PENA KREATIF : JURNAL PENDIDIKAN Vol 7, No 1 (2018): Pena Kreatif : Jurnal Pendidikan
Publisher : FKIP UM Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (510.251 KB) | DOI: 10.29406/jpk.v7i1.1087

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Pembelajaran Kimia Bahan Alam terdapat sumber belajar berupa powerpoint, jurnal ilmiah dan buku belum mengakomodir kebutuhan mahasiswa.Penelitian ini bertujuan untuk menghasilkan Buku suplemen Kimia Bahan Alam Pada Tanaman Genus Premna Sebagai Sumber Metabolit Antimikroba yang layak digunakan berdasarkan aspek kevalidan dan kepraktisan. Model pengembangan yang digunakan dalam penelitian ini adalah model Dick and Carey meliputi: mengidentifikasi tujuan pembelajaran, melakukan analisis pembelajaran, menganalisis pembelajar dan konteks, merumuskan tujuan pembelajaran khusus, mengembangkan instrumen penilaian, mengembangkan strategi pembelajaran, mengembangkan dan memilih bahan ajar, merancang dan mengembangkan evaluasi formatif, dan melakukan revisi produk.Teknik yang digunakan meliputi wawancara dan observasi.Alat yang digunakan adalah pedoman wawancara, angket respon mahasiswa dan dosen serta soal latihan dalam kelompok.Berdasarkan hasil penilaian oleh ahli materi dan ahli media memiliki nilai kevalidan sebesar 91,6% dankepraktisan uji coba perorangan sebesar 84,51% serta uji coba kelompok kecil sebesar 76,39%.
Pengembangan Instrumen Evaluasi Berbasis CBT dengan Software iSpring QuizMaker pada Materi Kesetimbangan Kimia Zakaria Zakaria; Dini Hadiarti; Raudhatul Fadhilah
Jurnal Pendidikan Matematika dan Sains Vol 5, No 2 (2017): December 2017
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (678.776 KB) | DOI: 10.21831/jpms.v5i2.16709

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Penelitian ini bertujuan untuk mengembangkan instrumen penilaian menggunakan software iSpring QuizMaker pada materi kesetimbangan kimia kelas XI di SMA Negeri 9 Pontianak. Adapun tahap pengembangan instrumen penilaian dalam penelitian ini adalah penelitian dan pengum­pulan data awal; perencanaan; pembuatan produk awal; uji coba awal; perbaikan produk awal; uji coba lapangan, dan perbaikan produk operasional. Hasil analisis menunjukan bahwa instrumen penilaian yang dikembangkan mempunyai nilai hasil validasi sebesar 1 yang terkategori sangat tinggi. Diperoleh nilai r11 sebesar 1,05 yang menunjukkan instrumen hasil pengembangan reliabel dengan kategori sangat tinggi. Kepraktisan ditunjukkan oleh respon positif guru sebesar 82,5% dan siswa sebesar 72,5% yang terkategori sangat kuat. Keefektifan ditunjukkan oleh persentase ketuntasan siswa sebesar 76,9 %,. Berdasarkan analisis kualitas tes, soal diberi tingkat kesulitan berdasarkan proporsi soal yang dibuat. Soal mampu membedakan peserta didik yang sudah menguasai dengan peserta didik yang belum menguasai indeks daya beda pada rentang 0,20≤ DB≤ 0,40.
In Vitro α-Glucosidase Inhibitory Activity of Ethanol Extract of Buas-buas (Premna serratifolia Linn) Dini Hadiarti
Majalah Obat Tradisional Vol 22, No 2 (2017)
Publisher : Faculty of Pharmacy, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (292.517 KB) | DOI: 10.22146/tradmedj.27917

Abstract

In 2008, diabetics in Indonesia has reached 8,5 million of 11,1 % prevalence in West Kalimantan. It was estimated to reach 14,1 million in 2035. The treatment of diabetes may occur adverse reactions such as hypoglycemia, lipoatrophy, lipohypertrophy, lactic acidosis, gastrointestinal disturbances, allergic reactions, and obesity. Therefore, it is necessary to find an alternative medicine to overcome this problem. Buas-buas (Premna serratifolia Linn) could supposedly be an anti diabetic by inhibiting the α-glucosidase enzyme, due to the compositions of secondary metabolites, cardioprotective activity and it has a similar genus with Premna serratifolia Linn. The soxhlet extraction result from Premna serrtifolia Linn leaf powders produced of 34,1 % yield. Meanwhile, the activity of α-glucosidase in vitroinhibition test with amicroplate reader in various concentrations of samples of 0,125, 0,5, 1, 1,5, 2, dan 2,5 2% (b/v) were obtained the absorptions of 37,95, 74,77, 86,15, 91,03 and 91,69 %, respectively. The extraction of Premna serratifolia Linn leaf revealed that the concentration of 2 % of sample inhibited in vitro α-glucosidase with a percentage of 91,03 %. The extraction of Premna serratifolia Linn leafinhibited α-glucosidase of 97 % from the percentage of Acarboseinhibition.
PENGARUH MODEL PROBLEM BASED LEARNING (PBL) TERHADAP AKTIVITAS DAN HASIL BELAJAR SISWA PADA MATERI KELARUTAN DAN HASIL KALI KELARUTAN KELAS XI IPA MAN 2 PONTIANAK Lili Suryani; Hairida Hairida; Dini Hadiarti
Jurnal Ilmiah Ar-Razi Vol 5, No 2 (2017): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (559.459 KB) | DOI: 10.29406/arz.v5i2.631

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ABSTRACTThis result aimed to determine the differences activities and student's learning result by using the model of problem and speech method on solubility and the result of multiplying the solubility material in science class of XI MAN 2 Pontianak. Formulation on this research used an experiment method. The results showed that 1) There were some influences of PBL model to student activities at Solubility and Solubility Product in the class of XI MAN 2 Pontianak. 2) There were some influences of PBL model to student learning results in solubility material in the class. 3) The influence of PBL model to student activities at Solubility and Solubility Product in class of XI MAN 2 Pontianak was 95%. 4) The influence of PBL model on student learning results at Solubility and Solubility Product in class of XI MAN 2 Pontianak was 95%.Keywords: Activities, Learning results, Problem Based Learning
ANALISIS KETERAMPILAN KERJA ILMIAH DALAM PRAKTIKUM KOLOID BERBASIS INKUIRI TERBIMBING PADA SISWA KELAS XI IPA 2 MAN 2 PONTIANAK Maimuna Maimuna; Hairida Hairida; Dini Hadiarti
Jurnal Ilmiah Ar-Razi Vol 4, No 2 (2016): Jurnal Ilmiah Ar-Razi
Publisher : Universitas Muhammadiyah Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (473.456 KB) | DOI: 10.29406/arz.v4i2.679

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ABSTRACTThis study aimed at describing thescientific work skill in guided inquiry-based colloid lab on XI IPA 2 students of MAN 2 Pontianak. Using descriptive method, this study employed 29 students as the subjects. The data collection techniques used were observation and interview. While thedata collection tools used were and interview guides. The average skillin formulating the problem was 100%, the skill informulating the hypothesis was 95.40%, the skill in conducting experiments was 86.59%, the skill in observing experimental results was 83.14%, the skillin analyzing the experimental results was 73.56%, and the skillin formulatingthe hypotheses was 70.12%. It can be concluded that the students of XI IPA 2 MAN 2 Pontianak are considered excellent as their overall average of scientific work skill inguided inquiry-based colloid lab was 84.48%.Keywords: Job Skills scientific, lab colloid-based guided inquiry
PENGEMBANGAN INSTRUMEN PENILAIAN (ASSESMENT) MENGGUNAKAN WONDERSHARE QUIZ CREATOR PADA MATERI KONSEP MOL SISWA KELAS X SMK NEGERI 7 PONTIANAK Aditya Firmansyah; Dini Hadiarti; Rody Putra Sartika
Jurnal Ilmiah Ar-Razi Vol 4, No 2 (2016): Jurnal Ilmiah Ar-Razi
Publisher : Universitas Muhammadiyah Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1055.965 KB) | DOI: 10.29406/arz.v4i2.669

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ABSTRACT This study was aimed by the impractical assessment used by the teacher. Therefore, teachers need the efficient and effective assessment system to help their work, such as wonder quiz creator. This study aimed at developing the assessment instrument on the Mole Concept on the grade X students of SMK Negeri 7 Pontianak. The model used was a modified 4-D (to 3-D) Thiagarajan; definition, design, and development. The data collecting technique used were measurement, and direct and indirect communication. The study revealed that wondershare quiz creator was considered usable. The student’s positive response was strong (76,49%) and the teacher’s positive response was very strong (90%). The effectiveness obtained probability (sig) score of 0,106>0,05, which means that there was a difference of before and after the assessment instrument given. As a result, the wondershare quiz creator is considered valid and usable. It is also preferred by the students as their response are good and positive. However, it is less effective to assess the final test.Keywords: Mole Concept, development, Wondershare quiz creator
KAJIAN KEMAMPUAN SISWA DALAM PEMBELAJARAN KIMIA DITINJAU DARI LITERASI SAINS PISA KELAS XII SMAN 1 TELUK KERAMAT Tomi Tomi; Dini Hadiarti; Rody Putra Sartika
Jurnal Ilmiah Ar-Razi Vol 4, No 2 (2016): Jurnal Ilmiah Ar-Razi
Publisher : Universitas Muhammadiyah Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (766.642 KB) | DOI: 10.29406/arz.v4i2.685

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ABSTRACT Science literacy is a key to face the challenge in this global era. It becomes a demand to be mastered by every individual whether in daily life or work field. An individual who is aware of science can use the scientific information that he has, to solve the problem in daily life. This research is done to give a description about twelve grade students' ability in learning chemistry based on PISA science literacy in SMAN 1 Teluk Keramat. The method applied in this research is quantitative descriptive. The sample of this research were twelve grade students of SMAN 1 Teluk Keramat. To collect data, the writer implemented some techniques. Those are measurement technique and direct communication technique. The instruments in collecting data in this research are students' achievement test in the form of essay and multiple choice in a passage. Based on the research findings, it showed that chemistry learning in SMAN 1 Teluk Keramat have already trained students' ability in science literacy. It is found that the students' ability in science literacy is  about 68,91% for the content science ability which is categorized as intermediate level and 68,91 for the context science ability, categorized as intermediate level. Keywords: Students' ability, science literacy, chemistry learning
PENGEMBANGAN BUKU SUPLEMEN KIMIA BAHAN ALAM PADA MATERI SKRINING FITOKIMIA TANAMAN GENUS PREMNA PROGRAM STUDI PENDIDIKAN KIMIA UNIVERSITAS MUHAMMADIYAH PONTIANAK saidah jambak; dini hadiarti; raudhatul fadhillah
Jurnal Ilmiah Ar-Razi Vol 7, No 2 (2019): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (290.444 KB) | DOI: 10.29406/ar-r.v7i2.1523

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By far, learning sources and materials used by the lecturers in Chemistry of Natural Materials class haven’t met the students’ needs, as teachers only used power point, text books, and scientific articles during the teaching-learning process. Therefore, it is important to develop the complete learning materials, such as supplementary books. This study focused on the validity of supplementary book for Chemistry of Natural Sciences Class of Phytochemical Screening of Gemnus Premna in terms of materials (content), media, and small group try out. Using Research and Development (R&D) Model of Dick & Carey, as well as the references from Pambudiono (2016) and Puspitasari (2016), this study implemented a number of steps. They were identifying the learning purposes, conducting the learning analysis, analyzing the students and the context, formulating the specific learning purposes, developing the assessment instrument, developing the learning strategies, developing and selecting the learning materials, designing and developing the formative evaluation, and revising the product. As many as 15 students of Chemistry Education participated as the samples. The data collection techniques were direct communication (interview), observation, and post test questions.The study revealed the material or the content of the supplementary book was valid by 98,6%. It was measured by the content validity, the presentation, and the language use. Similarly, based on the results of media expert, the supplementary book was also valid by 70,62%, measured by the book cover, book design, rules of writing, and feasibility of presentation. Last but not least, the results of the small group try out showed the book was valid by 84,18%, in terms of attractiveness, comprehensibility, and level of difficulty
PENGEMBANGAN PENUNTUN PRAKTIKUM INDIKATOR ASAM BASA BERBASIS KONTEN LOKAL KALIMANTAN BARAT Ria Tri Wulandari; Dini Hadiarti; Dedeh Kurniasih; Rizmahardian Ashari Kurniawan
Jurnal Ilmiah Ar-Razi Vol 7, No 1 (2019): JURNAL ILMIAH AR-RAZI
Publisher : Universitas Muhammadiyah Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (556.99 KB) | DOI: 10.29406/ar-r.v7i1.1375

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Acid-base is taught at SMA Negeri 1 Nanga Pinoh by using practical methods. Therefore, in order to deliver the material effectively and ideally, the proper guidebook is absolutely required. This study aimed to develop a valid, practical, and effective practical guide for acid-base material based on the local content of West Kalimantan. Using an R & D model of Borg and Gall, seven out of eleven stages of material design were employed. They were research and data collection, planning, draft development, initial product trial, initial product revision, main field trial, and revision of operational products.The data collection technique used were observation, questionnaire, and measurement. The instruments were observation and questionnaire sheet, and posttest questions. The study was obtained: (1) the coefficient of validity from the assessment of media, material and language experts were 1.00; (2) the response value on the initial field trial was 88.8%, and the response value on the main field trial was 89.16%; and (3)The student learning outcomes after taught using this practical guide were sharply improved by 97%. In conclusion, the practical guide for acid-base material based on the local content of West Kalimantan is effective to be used by the students of SMA Negeri I Nanga Pinoh.
PENGEMBANGAN MEDIA FLASH MATERI IKATAN KIMIA SISWA KELAS X SMA NEGERI 1 PONTIANAK Ananda Rizki Shelawaty; Dini Hadiarti; Raudhatul Fadhilah
Jurnal Ilmiah Ar-Razi Vol 4, No 2 (2016): Jurnal Ilmiah Ar-Razi
Publisher : Universitas Muhammadiyah Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (871.74 KB) | DOI: 10.29406/arz.v4i2.670

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ABSTRACTThis study aimed by the students’ low mastery score on Chemical Bond material at SMA Negeri 1 Pontianak. The mastery score gained by the students was only 44,3%. Based on the results of the questionnaires given to the students, they tend to study by using computer than power point program and video that have been used by the teachers. Therefore, this study aimed to develop teaching materials of Chemical Bond flash media for the students of grade X, SMA Negeri 1 Pontianak. A 3D (Define, Design, and Develop) development model suggested by Thiagarajan was carried out in this study. The data collection technique used were indirect communication, measurement, and observation. While the instruments were questionnaire sheets, pre-test and posttest questions, and observation sheet. The feasibility of the flash media developed was based on the aspects of validity, practicality, and effectiveness. The results obtained in this study were: (1) the average score of the flash media validity was 89.78% and was considered valid, (2) the practicality of the media based on the students’ response was 80.02% and was considered very strong and the teacher’s response was 75% and considered strong, and (3) the effectiveness of the media based on the learning outcomes showed significant results between before and after using the media (0.000 <0.05). As a result, flash media is regarded successful developed for the students of SMA Negeri 1 Pontianak and it is applicable to teach Chemical Bond material. Keywords: Chemical Bond, Flash media, media development