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Susanti Pudji Hastuti
Universitas Kristen Satya Wacana
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Dentistry Education Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Peningkatan Aktivitas dan Hasil Belajar Siswa Melalui Penerapan Model Learning Cycle 7E (LC 7E) pada Pembelajaran Biologi Kelas X IPA 4 SMA Negeri 1 Bringin Tahun Pelajaran 2016/2017 Mirjanah, Mita; Hastuti, Susanti Pudji; Priyayi, Desy Fajar
Jurnal VARIDIKA Vol 29, No 1 (2017): Volume 29 No. 1, Juli 2017
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (360.912 KB) | DOI: 10.23917/varidika.v29i1.5146

Abstract

Tujuan dari penelitian ini adalah untuk meningkatkan aktivitas dan hasil belajar kognitif siswa melalui model pembelajaran Learning cycle 7E dalam materi komponen ekosistem. Penelitian ini dilakukan di SMA Negeri 1 Bringin dengan menggunakan siswa kelas X IPA 4sebagai subyek. Metode yang digunakan dalam penelitian ini adalah analisis deskriptif dengan instrumen pengumpulan datanya berupa angket, lembar observasi, wawancara dan tes. Berdasarkan hasil penelitian, pada siklus I siswa yang memiliki aktivitas belajar kategori baik sebesar 62,5%. Pada siklus II aktivitas belajar kategori baik meningkat menjadi 93,75% dan aktivtias belajar kategori sangat baik sebesar 6,25%. Berdasarkan hasil belajar kognitif siswa, persentase siswa yang memenuhi KKM 70 pada siklus I sebesar 43,75% meningkat menjadi 100%. Berdasarkan hasil analisis gain score, pada siklus I siswa yang termasuk dalam kategori tinggi sebesar 43,75%, kategori sedang sebesar 21,88% dan kategori rendah sebesar 34,38%. Pada siklus II siswa yang termasuk kategori tinggi sebesar 81,25%, kategori sedang sebesar 12,50% dan kategori rendah sebesar 6,25%. Hasil penelitian menunjukkan bahwa penerapan model LC 7E mampu membuat siswa lebih aktif dalam proses pembelajaran. Melalui aktivitas belajar yang dilakukan siswa lebih mudah untuk memahami dan mengingat konsep materi sehingga hasil belajar kognitif siswa meningkat.
MASALAH DALAM PEMBELAJARAN MENURUT PERSPEKTIF GURU BIOLOGI SEKOLAH MENENGAH ATAS (SMA) DI SALATIGA DAN KABUPATEN SEMARANG Priyayi, Desy Fajar; Keliat, Natalia Rosa; Hastuti, Susanti Pudji
Didaktika Biologi: Jurnal Penelitian Pendidikan Biologi Vol 2, No 2 (2018): DIDAKTIKA BIOLOGI
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/dikbio.v2i2.1243

Abstract

Guru sebagai salah satu unsur dalam pembelajaran diharapkan dapat terus meningkatkan kualitas pembelajaran. Evaluasi, refleksi dan perbaikan proses pembelajaran perlu dilakukan sehingga tujuan pembelajaran tercapai. Perbaikan pembelajaran dilakukan berdasarkan masalah-masalah yang ditemui guru. Penelitian ini bertujuan untuk menganalisis masalah-masalah dalam pembelajaran menurut perspektif guru biologi di Salatiga dan Kabupaten Semarang. Responden adalah 23 guru biologi yang tersebar di SMA Salatiga dan Kabupaten Semarang. Teknik pengumpulan data adalah melalui  kuesioner dan wawancara. Data yang diperoleh kemudian dianalisis dan dideskripsikan secara kualitatif. Hasil penelitian menunjukkan masalah pembelajaran menurut guru biologi dapat dikelompokkan sebagai berikut: 1) masalah berkaitan dari faktor siswa, 2) sarana dan prasarana, 3) materi pembelajaran, 4) faktor guru, 5) faktor kondisi keluarga siswa. Teachers as one of the elements in learning are expected to continue to improve the quality of learning. Evaluation, reflection, and improvement of the learning process need to be carried out so that learning objectives are achieved. Improvement of learning is done based on the problems encountered by the teacher. This study aimed to analyze problems in learning according to the perspective of biology teachers in Salatiga and Semarang Regency. Respondents were 23 biology teachers spread in Salatiga High School and Semarang Regency. Data collection techniques were through questionnaires and interviews. The data obtained were analyzed and described qualitatively. The results showed that learning problems according to biology teachers can be grouped as follows: 1) problems related to student factors, 2) facilities and infrastructure, 3) learning material, 4) teacher factors, 5) factors in the family condition of students.
Integrated Science Learning Using Scientific Approach in Junior High Schools in Semarang Regency Debora Natalia Sudjito; Natalia R. Keliat; Susanti P. Hastuti
Indonesian Journal of Science and Education (IJOSE) Vol 2, No 1 (2018): Indonesian Journal of Science and Education
Publisher : Fakultas Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (212.557 KB) | DOI: 10.31002/ijose.v2i1.583

Abstract

The scientific approach is strongly suggested to be used in implementing “Curriculum of 2013” (K13) by Department of Education. This study aimed to identify whether integrated science learning was implemented in Junior High Schools in the Semarang Regency, Indonesia used a scientific approach, how it was implemented, and what problems that emerged in it. This research was conducted in 13 Junior High Schools in Semarang Regency, Central Java Province that implemented K13 during the odd semester in 2016/2017 school year by interviewing the science teachers in each school to determine how scientific approach was implemented in their schools. Based on the interview results analyzed using qualitative description methods, K13 was implemented, teachers used a scientific approach to teach science subject in their classes, and they integrated science materials in the curriculum. However, not all of the science materials were able to be integrated and taught using scientific approach because the teachers’ educational background is not from science education. Furthermore, the availability of the teachers and students books, the laboratory facilities, and funds were very limited. Many solutions such as using various learning models were done, but they were not be able to maximize the learning even though the students were active and enthusiastic in learning. Therefore, the teachers really need real supports to enhance their learning using scientific approach.Keywords: integrated science learning, scientific approach, curriculum of 2013, junior high school
Learning Bryophyta: Improving students’ scientific literacy through problem-based learning Vitri Anugrah Nainggolan; Risya Pramana Situmorang; Susanti Pudji Hastuti
JPBI (Jurnal Pendidikan Biologi Indonesia) Vol. 7 No. 1 (2021): MARCH
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jpbi.v7i1.15220

Abstract

Regarding 21st-century learning, scientific literacy is an important competency which must be owned by students. Nevertheless, scientific literacy of Indonesian students has been recognized in low level. This study aimed to describe students’ scientific literacy in Bryophyta topic using problem-based learning. This Classroom Action Research (CAR) used the Kemis & Mc.Taggart research design. This study involved 30 students of X graders in Kristen Satya Wacana Senior High School. Students' scientific literacy was measured using a test which comprised of 15 MCQs and 5 essay questions. The data obtained was analyzed using N-gain score. The results indicated that students' scientific literacy was improved from cycle 1 (45.20) to cycle 2 (65.59) as they learnt about Bryophyta. The use of PBL in learning Bryophyta accommodates students' activities to promote their scientific literacy. Scientific activities in PBL strongly support the development of students' scientific literacy.
PENERAPAN MODEL INKUIRI TERBIMBING BERBANTUAN MACROMEDIA FLASH UNTUK MENINGKATKAN MOTIVASI DAN HASIL BELAJAR SISWA KELAS VIII PADA MATERI SISTEM PEREDARAN DARAH MANUSIA DI SMP KRISTEN 4 SALATIGA Antonyus Seh; Risya Pramana Situmorang; Susanti Pudji Hastuti
Wahana Didaktika : Jurnal Ilmu Kependidikan Vol. 16 No. 2 (2018): Wahana Didaktika Jurnal Ilmu Kependidikan
Publisher : Faculty of teaching training and education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/wahanadidaktika.v16i2.2044

Abstract

AbstrakPenelitian ini bertujuan untuk mengetahui peningkatan motivasi dan hasil belajar kognitif siswa kelas VIII SMP Kristen 4 Salatiga T.A 2017/2018 melalui penggunaan model inkuiri berbantuan macromedia flash. Jenis penelitian ini adalah Penelitian Tindakan Kelas dengan desain Kemmis dan Mc. Taggart dengan dua siklus. Masing-masing siklus memiliki empat tahapan: rencana, tindakan, pengamatan dan refleksi. Subjek dalam penelitian ini adalah siswa kelas VIII SMP Kristen 4 Salatiga yang berjumlah 20 siswa. Indikator keberhasilan yang menunjukan keberhasilan dari sebagai berikut: 1) terjadi peningkatan hasil belajar kognitif siswa yang memperoleh nilai di atas KKM sebanyak 70%, 2) terjadi peningkatan motivasi belajar siswa setelah menggunakan model inkuiri terbimbing berbantuan macromedia flash sebesar 60% dengan kategori baik. Hasil siklus 1 menunjukkan terdapat peningkatan motivasi belajar siswa sebesar 37% atau 6 siswa saja yang mengalami peningkatan motivasi dengan kategori baik. Pada hasil belajar kognitif siswa yang sudah mencapai KKM ada 7 siswa tetapi masih ada 10 siswa yang belum mencapai KKM dan dengan kategori peningkatan yang rendah. Siklus kedua berdasarkan dari indikator keberhasilan dianggap sudah berhasil. Hal ini terlihat berdasarkan indikator keberhasilan pada aspek motivasi yaitu sebesar 61%. Sementara ketercapaian hasil belajar kognitif siswa yaitu 82% atau sekitar 14 siswa yang tuntas KKM.  Kata Kunci : Inkuiri Terbimbing, Macromedia Flash, Motivasi, Hasil BelajarAPPLICATION OF GUIDED INKUIRI ASSISTED MACROMEDIA FLASH TO INCREASE MOTIVATION AND LEARNING OUTCOMES OF CLASS VIII STUDENTS ON HUMAN BLOOD CIRCULATION SYSTEM MATERIAL IN SMP KRISTEN  4 SALATIGAAbstract            This research aims to increase motivation and learning outcomes through guided inquiry learning model assisted macromedia flash on VIII grade students of SMP Kristen 4 Salatiga  in academic year 2017/2018. This type of research is a Classroom Action Research designed Kemmis and Mc. Taggart which conducted in two cycles. Each cycle consists of four phases: planning, implementation, observation, and reflection. The subject was VIII grade students in SMP Kristen 4 Salatiga 3 that included 20 students. Indicators that show the success of the following: 1) improvement of cognitive learning outcomes of students who scored above the KKM by 70%, 2) the improvement of students' learning motivation after using guided inquiry model assisted macromedia flash with 60% achievement with good category. The result of cycle 1 indicates that there is an increase of students' learning motivation by 37% or 6 students who have improved motivation with good category. Cognitive learning outcomes of students who have reached KKM there are 7 students but there are still 10 students who have not reached KKM and with the category of low increase. The second cycle based on the success indicator is considered successful. based on success indicator on aspect of motivation that is equal to 61%. But the achievement of students' cognitive learning achievement is 82% or about 14 students who complete the KKM. Keywords: Guided Inquiry, Macromedia Flash, Motivation, Learning Outcomes
Uji Aktivitas Antibakteri Campuran Ekstrak Biji Kelor (Moringa oleifera) dan Daun Kersen (Muntingia calabura) terhadap Pseudomonas aeruginosa dan Bacillus subtilis Syuhuud Arumbinang Wajdi; Sri Kasmiyati; Susanti Puji Hastuti
Journal of Tropical Biodiversity and Biotechnology Vol 2, No 1 (2017): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1284.816 KB) | DOI: 10.22146/jtbb.13728

Abstract

Moringa oleifera and Muntingia calabura leaves have been reported to have an antibacterial activity that could inhibit the growth of gram positive and negative bacteria. However, the antibacterial activity of mixed extracts of M. oleifera seeds and M. calabura leaves has not been widely reported. The purpose of this study was to test antibacterial activity of the mixed extract of M. oleifera seeds and M. calabura leaves on the growth of Pseudomonas aeruginosa and Bacillus subtilis. The experiment was conducted by agar disc diffusion method using three groups of extract treatments i.e. M.oleifera seeds extract, M.calabura leaves extract, and mixed extracts of M. oleifera seeds and M. calabura leaves with a ratio of 1: 1 (v / v). The extraction of M. oleifera seeds and M. calabura leaves was conducted by soxhlation method and using ethanol as solvent. The three groups of extract treatments with a concentration of 400 ppm, 800 ppm, 1200 ppm, and 1600 ppm were tested on P. aeruginosa. The antibacterial activity test of M. oleifera seed extract against B. subtilis carried out at the level of concentrations i.e. 150 ppm, 300 ppm, 450 ppm, 600 ppm, and 750 ppm, meanwhile,  M. calabura leaves extract was done at concentration 1500 ppm, 3000 ppm, 4500 ppm, 6000 ppm, and 7500 ppm. The result showed that the three groups of extract treatments possess antibacterial activity against P. aeruginosa. The mixed extracts of M. oleifera seeds and M. calabura leaves with a ratio of 1: 1 (v / v) at level concentration of 400 ppm and 800 ppm were tested against P. aeruginosa significantly increased, and at concentrations of 1200 ppm and 1600 ppm significantly decreased  the inhibition diameter of bacterial growth than the other extracts treatments. The antibacterial test results of M.oleifera seeds extract and M.calabura leaves extract against B. subtilis shows that increased concentrations of the extract significantly increase the inhibition diameter of bacterial growth especially at high concentrations ( 600 ppm and 750 ppm) on M. oleifera seeds extract, as well as 6000 ppm and 7500 ppm in M. calabura leaves extract.
Analisis Status Keberlanjutan Sumber Mata Air Senjoyo pada Dimensi Ekologi dengan Metode RAP-WARES (Rapid Appraissal for Water Resources) Anggia Agatha Reza; Desti Christian Cahyaningrum; Susanti Pudji Hastuti
Jurnal Ilmu Lingkungan Vol 19, No 3 (2021): November 2021
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.19.3.588-598

Abstract

ABSTRAKFungsi sumber mata air Senjoyo sebagai kawasan lindung resapan air dan sekitar mata air perlu mendapat prioritas untuk menjamin keberlanjutan sumber mata air Senjoyo. Keberhasilan pengelolaan sumber mata air Senjoyo sebagai kawasan lindung resapan air dan sekitar mata air dapat ditunjukkan dengan status keberlanjutan pada dimensi ekologi. Penelitian ini bertujuan untuk menganalisis status keberlanjutan sumber mata air Senjoyo pada dimensi ekologi. Status keberlanjutan ditentukan berdasarkan indeks keberlanjutan yang dirumuskan melalui metode RAP-WARES (Rapid Appraissal for Water Resources). Penelitian yang dilakukan merupakan penelitian survei dengan data primer dan sekunder yang dikonversi menjadi data kualitatif dalam bentuk skala likert sesuai atribut yang telah disusun. Hasil skoring data ke skala likert kemudian dianalisis dengan teknik Multi-Dimensional Scaling (MDS). Hasil analisis menunjukkan bahwa indeks keberlanjutan Mata Air Senjoyo pada dimensi ekologi adalah sebesar 54.78 dan termasuk dalam kriteria cukup berkelanjutan. Model MDS yang dibangun menghasilkan nilai stress dan nilai R2 berturut-turut sebesar 14,12% dan 0,948. Nilai tersebut menunjukkan bahwa keseluruhan atribut yang digunakan dapat mengkaji dengan cukup baik status keberlanjutan kawasan mata air Senjoyo dalam dimensi ekologi. Selisih Indeks Monte Carlo dan Indeks MDS adalah sebesar 0.246 yang membuktikan bahwa kesalahan dalam proses pembuatan skor untuk setiap atribut cenderung kecil, variasi dalam pemberian skor untuk setiap atribut akibat perbedaan pendapat responden relatif kecil, proses analisis yang dilakukan berulang stabil dan kesalahan dalam pemasukan dan kehilangan data dapat dihindari. Berdasarkan hasil analisis sensitivitas, terdapat dua atribut yang paling sensitif yaitu atribut perlindungan terhadap sungai dan mata air (perubahan RMS 3,50%), dan atribut aktvitas pariwisata (perubahan RMS 3,20%). Sehingga penelitian ini menyimpulkan bahwa, pengelolaan yang dilakukan masih perlu disesuaikan dengan prinsip pembangunan berkelanjutan, terutama pada aspek perlindungan terhadap sungai dan mata air dan aktivitas pariwisata. Direkomendasikan untuk lebih mengembangkan pariwisata berbentuk ekowisata daripada pariwisata massal untuk menjamin keberlanjutan Sumber Mata Air Senjoyo.  AbstractThe function of the Senjoyo springs as a water catchment protected area and around the springs needs to be prioritized to ensure the sustainability of the Senjoyo springs. The success of the of Senjoyo springs management as a water catchment protected area and around the springs can be shown by the sustainability status of the ecological dimension. This study aims to analyze the sustainability status of the Senjoyo spring on the ecological dimension. Sustainability status is determined based on the sustainability index that was formulated using the RAP-WARES (Rapid Appraissal for Water Resources) method. This research is a survey research with primary and secondary data which is converted into qualitative data in the form of a Likert scale according to the attributes compiled. The results of scoring the data to a likert scale were then analyzed using the Multi-Dimensional Scaling (MDS) technique. The results of the analysis shown that the sustainability index of Senjoyo Springs on the ecological dimension is 54.78 and is included in the criteria for being quite sustainable. Stress values and R2 values of the MDS model that was built successively are 14.12% and 0.948. This value indicates that all of the attributes that used can properly assess the sustainability status of the Senjoyo spring on the ecological dimension. The difference between the Monte Carlo Index and the MDS Index is 0.246, which proves that the error in the scoring process for each attribute, the variation in presenting scores for each attribute, and the results of the respondent's disagreement are relatively small. Also, the analysis process that is repeated is stable and errors in data entry and loss can be avoided. Based on the sensitivity analysis, there are two most sensitive attributes, namely the attribute of protection against rivers and springs (change in RMS 3.50%), and attributes of tourism activities (change in RMS 3.20%). So, the conclusion of this study is the management that carrying out still needs to be adjusted to the principles of sustainable development, especially in the aspect of protecting rivers and springs and tourism activities. It is recommended to develop tourism in the form of ecotourism instead of mass tourism to ensure the sustainability of Senjoyo Springs.
The Development Of Crossword Game Media On Virus Material Mardiana Nata Ruron; risya pramana situmorang; Susanti Pudji Hastuti
EDUSAINS Vol 12, No 2 (2020): EDUSAINS
Publisher : Faculty of Education and Teacher Training, UIN (State Islamic University) Syarif Hidayatul

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/es.v12i2.15095

Abstract

PENGEMBANGAN MEDIA GAME CROSSWORD PADA VIRUS MATERIALAbstractCrossword game media was a learning tool that serves features to understand the concept and solve a problem. The media provides many features that facilitate students to learn enjoyably. This study aims to develop a viable and effective product to improve students' problem-solving skills and conceptual understanding. The ADDIE model is used as a type of research and development. The subjects were students of X-grade senior high school in Salatiga. Data collection was carried out through observation, questionnaires, and tests. Media experts and material experts carried out the validation of products. Teachers were involved in giving feedback about the practicality of the media. The validation concluded that the product was feasibly based on the media aspect= 85,5% (feasible) and the material aspect = 81,25% (feasible). The product's development has improved problem-solving skills and conceptual understanding effectively that the t-test showed a significant value with acquisition sig. 2 tailed < 0,05. The results indicate that the crossword game was feasible and effective in improving problem-solving skills and conceptual understanding.AbstrakMedia crossword game merupakan salah satu media belajar siswa, menyediakan fitur untuk menjadikan siswa dapat memahami konsep dan memecahkan masalah. Crossword game menyediakan banyak fitur yang memudahkan siswa untuk belajar dengan menyenangkan. Penelitian ini bertujuan untuk mengembangkan produk yang layak dan efektif untuk meningkatkan keterampilan pemecahan masalah dan pemahaman konseptual siswa. Model ADDIE digunakan sebagai penelitian dan pengembangan. Subjek penelitian adalah siswa SMA kelas X di Salatiga. Pengumpulan data dilakukan melalui observasi, kuesioner, dan tes. Validasi produk melibatkan ahli media dan materi. Guru dilibatkan untuk memberikan umpan balik tentang kepraktisan media. Berdasarkan validasi, disimpulkan bahwa produk layak berdasarkan aspek media = 85,5% (layak) dan aspek material = 81,25% (layak). Pengembangan dari produk telah meningkatkan keterampilan pemecahan masalah dan pemahaman konseptual secara efektif sehingga berdasarkan uji-t menunjukkan nilai yang signifikan dengan perolehan sig. 2 tailed <0,05. Hasil menunjukkan bahwa media crossword game layak dan efektif dalam meningkatkan keterampilan pemecahan masalah dan pemahaman konseptual.  
Determination of fluoride content in toothpaste using spectrophotometry Susanti Pudji Hastuti; Devinta Lestari; Yohanes Martono
Dental Journal (Majalah Kedokteran Gigi) Vol. 46 No. 3 (2013): September 2013
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (355.638 KB) | DOI: 10.20473/j.djmkg.v46.i3.p124-129

Abstract

Background: Intake excessive fluoride in children’s teeth are generally marked with white and brown patches. Excessive fluoride of more than 4.0 mg/L can cause a person suffering from poisoning, fragility of the bones (osteoporosis), liver and kidney damage. Knowledge about the spectrophotometry for determination method of fluoride content in commercially available toothpaste is very few. Purpose: The purposes of study were to examine the suitable method for fluoride extraction and to determine out the accuracy, precision, linearity, and stability of the measurement method of fluoride content in toothpaste. Methods: The suitable F extraction method was determined by the comparison among 3 methods of extraction; e.g. the dried samples were immersed in (1) distilled water, (2) 96% HCl, and (3) 96% HNO3; and the validation methods of measurement were the maximum wavelength, standart curve, accuracy test, precision test, and stability test. Results: Result showed that the fluoride extraction by using the concentrated HNO3 was found to have the highest levels of fluoride, followed by hydrochloric acid dissolution (HCl) and distilled water, while the method of validation showed that SPADNS revealed the acceptable accuracy. Precision has the RSD ≤ 2.00%. Furthermore the stability test result showed that the measurement of fluoride less than 2 hours was still reliable. Conclusion: The study suggested that the best result of fluoride extraction from toothpaste could be gained by using concentrate HNO3, and the spectrophotometer (UV-Vis Mini Shimadzu U-1240) and SPADNS have the acceptable accuracy.Latar Belakang: Pemasukan fluoride yang berlebihan pada gigi anak ditandai dengan bercak putih dan coklat. Fluoride lebih dari 4.0 mg / L dapat menyebabkan seseorang menderita keracunan , kerapuhan tulang (osteoporosis), kerusakan hati dan ginjal. Pengetahuan tentang spektrofotometri untuk metode penentuan kadar fluoride dalam pasta gigi yang tersedia secara komersial sangat sedikit . Tujuan: Penelitian ini bertujuan meneliti metode yang tepat untuk mengektrak kandungan fluoride dan mengukur akurasi, presisi, linearitas dan stabilitas pengukuran kandungan fluoride pada pasta gigi. Metode: Metode ekstrak yang tepat ditentukan dengan membandingkan 3 metode, yaitu dengan perendamam sampel kering dalam (1) air destilasi, (2) HCl 96%, dan (3) HNO3 96%; dan validasi metode yang memperhitungkan panjang gelombang, kurva standar, tes akurasi, presisi, dan stabilitas. Hasil: Hasil menunjukkan bahwa metode ekstrasi fluoride pada pasta gigi dengan menggunakan metode HNO3 didapatkan level fluoride tertinggi, diikuti dengan metode HCl dan air destilasi. Hasil validasi metoda menunjukkan bahwa penggunaan SPADNS akurasinya dapat diterima. Presisi mempunyai RSD ≤2,00%. Pada tes stabilitas didapatkan hasil bahwa pengukuran kadar fluorida dalam waktu tidak lebih dari 2 jam masih dapat dilakukan. Simpulan: Penelitian ini menunjukkan bahwa hasil terbaik ekstraksi fluoride dari pasta gigi dapat diperoleh dengan menggunakan HNO3, dan spectrophotometer (UV-Vis Mini Shimadzu U-1240) dan SPADNS memiliki pengukuran yang akurat.
IMPLEMENTASI KARAKTER PEDULI LINGKUNGAN SISWA MELALUI PROGRAM ADIWIYATA DI SMP NEGERI 7 SALATIGA Yohanis Beanal; Risya Pramana Situmorang; Susanti Pudji Hastuti
Bioma : Jurnal Ilmiah Biologi Vol 8, No 2 (2019): Bioma
Publisher : Universitas PGRI Semarang

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

Abstract

SMP Negeri 7 Salatiga adalah sekolah yang telah menerapkan program sekolah adiwiyata. Program adiwiyata adalah lingkungan berbasis sekolah yang diprakarsai oleh Kementerian Lingkungan Hidup untuk sekolah yang berpartisipasi dalam pengelolaan lingkungan. Jenis penelitian ini adalah penelitian deskriptif kualitatif. Subjek penelitian ini adalah kepala sekolah, guru dan siswa di kelas VII, VIII dan IX tingkat SMP Negeri 7 Salatiga. Objek penelitian ini adalah penerapan karakter kepedulian lingkungan di SMP Negeri 7 Salatiga. Data diperoleh melalui observasi, wawancara, dokumentasi, dan kuesioner. Hasil penelitian menunjukkan bahwa penerapan kepedulian terhadap lingkungan memiliki persentase tertinggi aspek anti-pengecualian dengan persentase kategori baik 79%. Sedangkan persentase terendah adalah krisis lingkungan dengan persentase 52% dalam kategori cukup. Implementasi karakter kepedulian terhadap lingkungan siswa melalui program adiwiyata di SMP Negeri 7 Salatiga mencapai 15% dalam kategori baik, dari total 83 siswa. Berdasarkan hasil pengamatan, pengembangan proses pembelajaran menerima persentase 86% dalam kategori baik.
Co-Authors Andreas Andreas Anggia Agatha Reza Anissa Diti Kurniasari Antonyus Seh Debora Natalia Sudjito Desti Christian Cahyaningrum Desy Fajar Priyayi Devinta Lestari Dewi Rande Upa Dinar Putri Rahayu Elia Suwi Ferlita Kale Fidelis Anggara Murdani Kolin Ft. Dea Elma Eldiana Hartati Soetjipto Heriyanto Heriyanto Indah Tri Susilowati Leenawaty Limantara Lie Li Lydia Ninan Lestario Madalena Madalena Mardiana Nata Ruron Meidini Martiningsih Mirjanah, Mita Natalia Rosa Keliat Pierre Charismanuel Gideon Putri Malithasari Richard D Anggada Risya Pramana Situmorang Rizkika Handayani Sri Kasmiyati Sucahyo Syuhuud Arumbinang Wajdi Vini Kurnia Ramadhani Vitri Anugrah Nainggolan Yayi Suryo Prabandari Yohanes Martono Yohanis Beanal Yunita Tri Utami