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INDONESIA
EKSAKTA : Jurnal Penelitian dan Pembelajaran MIPA
Published by Universitas Muhammadiyah Tapanuli Selatan
ISSN : 2502101X     EISSN : 25982400     DOI : -
Core Subject : Education, Agriculture,
Agriculture, Biological Sciences & Forestry Education
Jurnal Eksakta diterbitkan dua kali setahun sebagai media publikasi ilmiah dalam pengkajian dan pengembangan Ilmu Pendidikan di bidang Matematika, Fisika, Kimia dan Biologi. Jurnal Eksakta memuat tulisan ilmiah berupa artikel konseptual, hasil penelitian maupun isu isu yang relevan dalam bidang MIPA.
Arjuna Subject : -
Articles 464 Documents
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PENGEMBANGAN BAHAN AJAR MATEMATIKA BERBASIS MODEL DISCOVERY LEARNING PADA MATERI BARISAN DAN DERET Takwa, Takwa; Mania, Sitti; Abrar, Andi Ika Prasasti; Nur, Fitriani; Mattoliang, Lisnasari Andi
Eksakta : Jurnal Penelitian dan Pembelajaran MIPA Vol 6, No 2 (2021): Eksakta : Jurnal Penelitian dan Pembelajaran MIPA
Publisher : Fakultas Keguruan Dan Ilmu Pendidikan, UM-Tapsel

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/eksakta.v6i2.193-201

Abstract

This study aims to develop mathematics teaching materials based on discovery learning models on the subject of sequences and series. This type of research is Research & Development (R&D). The development model used is the model proposed by Plomp which consists of the initial investigation phase, the design phase, the realization phase and the evaluation and revision test phases. The test subjects in this study were students of class XI MAN 1 Makassar. The instruments used in this study were the expert validation sheet, the observation sheet of the teacher's ability to manage learning, the student activity observation sheet, the student response questionnaire, the teacher response questionnaire and the conceptual understanding test. Based on the results of the trials conducted, it was found that the teaching materials developed met the valid, practical, and effective criteria.
PENGARUH PEMBELAJARAN DARING TERHADAP MOTIVASI DAN HASIL BELAJAR KOGNITIF PESERTA DIDIK DI SMA NEGERI 3 TANJUNG JABUNG TIMUR Patmi, Patmi; Hamidah, Afreni; Anggereini, Evita
Eksakta : Jurnal Penelitian dan Pembelajaran MIPA Vol 6, No 2 (2021): Eksakta : Jurnal Penelitian dan Pembelajaran MIPA
Publisher : Fakultas Keguruan Dan Ilmu Pendidikan, UM-Tapsel

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/eksakta.v6i2.228-234

Abstract

This study aims as a teaching and learning activity that utilizes a network or internet connection so that communication is established between teachers and students without direct contact. Problems faced in online learning include: weak signal, the application used is sometimes problematic, and many more problems that will be caused in online learning. The results of the observations made by the researchers did the learning motivation of students in biology subjects was still very low, there were some students who were sometimes not enthusiastic in learning so that the learning outcomes obtained were still limited to the KKM value, this can be seen from the average test scores during learning Biology during the COVID-19 pandemic. The purpose of this study was to determine the effect of online learning on students' learning motivation and to determine the effect of online learning on students' cognitive learning outcomes. This type of quantitative research with a descriptive approach. The research subjects were students of class XI Science Department at SMA Negeri 3 Tanjung Jabung Timur. The results of this study are (1) on the motion system material in humans, students' learning motivation with online learning falls into the good category on the indicators of material delivery by using links and using different methods and applications; (2) cognitive learning outcomes in online learning during the pandemic are not much different when compared to face-to-face learning. Although in practice there are deficiencies found, but there is no other choice but to optimize online learning, because in current conditions only technology can be a bridge in transferring knowledge from teachers to students.
DEDAK FERMENTASI SEBAGAI PUPUK ALAMI DALAM UPAYA MENINGKATKAN KESUBURAN MEDIA BUDIAYA IKAN LELE SANGKURIANG (Clarias sp) Afriani, Dwi Tika; Syafitri, Emmy; Siswoyo, Bambang Hendra
Eksakta : Jurnal Penelitian dan Pembelajaran MIPA Vol 6, No 2 (2021): Eksakta : Jurnal Penelitian dan Pembelajaran MIPA
Publisher : Fakultas Keguruan Dan Ilmu Pendidikan, UM-Tapsel

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/eksakta.v6i2.171-177

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh dedak fermentasi dalam meningkatkan kesuburan media budidaya ikan lele sangkuriang (Clarias sp). Dedak yang digunakan dalam penelitian ini adalah dedak murni yang difermentasi menggunakan Saccharomyces cereviciae dengan konsentrasi penggunaan; P1 (55 mg/L), P2 (60 mg/L), P3 (65 mg/L), P4 (70 mg/L). Berdasarkan hasil peneltian diketahui bahwa kelimpahan plankton terbesar diperoleh dari perlakuan P4 (5193 sel/ml) dan dikategorikan dalam kelimpahan sedang. Berdasarkan uji kualitas air menunjukkan bahwa setiap perlakuan yang diberikan tidak menyebabkan penurunan kualitas yang signifikan pada faktor suhu, pH, DO, nitrat, orthofospor dan amonia. Pertumbuhan Panjang mutlak tertinggi diperoleh dari perlakuan P2 dan P3 (1,52 cm) namun tidak berbeda nyata dengan perlakuan P1 (1,48 cm) dan P4 (1,50 cm). Berat mutlak tertinggi diperoleh dari perlakuan P2 (1,86 gram) dan tidak berbeda nyata dengan perlakuan P3 (1,84 gram) dan P4 (1,68 gram). Maka dari hasil tersebut dapat disimpulkan bahwa konsentrasi terbaik penggunaan dedak fermentasi sebagai upaya dalam meningkatkan kesuburan media budidaya ikan lele sangkuriang adalah 60 mg/L.
PENINGKATAN HASIL BELAJAR MATEMATIKA SISWA PADA SUB POKOK BAHASAN KUBUS DAN BALOK DENGAN PENERAPAN MODEL PEMBELAJARAN CONCEPTUAL UNDERSTANDING PROCEDURES DI KELAS IX-B SMP NEGERI 2 TANTOM ANGKOLA Sihombing, Risma Masnairan; Arifin, Mohd.; Nurdalilah, Nurdalilah
Eksakta : Jurnal Penelitian dan Pembelajaran MIPA Vol 6, No 2 (2021): Eksakta : Jurnal Penelitian dan Pembelajaran MIPA
Publisher : Fakultas Keguruan Dan Ilmu Pendidikan, UM-Tapsel

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/eksakta.v6i2.267-273

Abstract

The problem in this study is the low learning outcomes of students in the sub-topic of cubes and blocks in class IXb of SMP Negeri 2 Tantom Angkola, to overcome this problem in this study the application of the Learning Model Conceptual Understanding Procedures. This research is a classroom action research, The results showed that by applying the Conceptual Understanding Procedures Learning Model, the results of the initial test showed that the lowest score was 45 and the highest score was 80. study completeness requirements) as many as 14 people (58.33%). And the mean value of the initial test score was 59.79. After giving the action in the first cycle, it was obtained an increase in student learning outcomes with a class average of 68.12. In the first learning outcomes test, it can be seen that 21 students (87.50%) have completed their studies and 3 students (12.50%) have not completed their studies. Based on the results of the research, it can be concluded that there is an increase in student learning outcomes on the sub-topic of cubes and blocks with the application of the Conceptual Understanding Procedures Learning Model in Class IXb of SMP Negeri 2 Tantom Angkola.
Crinum asiaticum (BOTANI, PEMANFAATAN DAN BIOAKTIVITAS) Silalahi, Marina
Eksakta : Jurnal Penelitian dan Pembelajaran MIPA Vol 6, No 2 (2021): Eksakta : Jurnal Penelitian dan Pembelajaran MIPA
Publisher : Fakultas Keguruan Dan Ilmu Pendidikan, UM-Tapsel

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/eksakta.v6i2.202-208

Abstract

Crinum asiaticum is a type of Amarallydaceae has been long used as a traditional medicine. The purpose of this article is to explain the relationship between the use of C. asiaticum as a traditional medicine and its bioactivity. The method used in writing the article is a literature review on some research published online using the keyword C. asiaticum, uses of C. asiaticum and bioactivities of C. asiaticum. The results obtained were then synthesized to explain the utilization and bioactivity of C. asiaticum. The traditional medicine of C. asiaticum is used to treat fever, treat fractures, sprains, inflammation and treat back pain. C. asiaticum has bioactivity as an antioxidant, antidiabetic mellitus, antimicrobial, anti-cancer, anti-inflammatory, analgesic and anti-urolytic. Licorin, crinamin and 6-hydroxycrinamine are compounds that are responsible for anti-cancer, so it is potential to be developed as an alternative anti-cancer because they are easily found in the environment.
PENGARUH PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE THINK PAIR AND SHARE TERHADAP KEMAMPUAN PEMECAHAN MASALAH SISWA PADA MATERI BENTUK ALJABAR KELAS VII MTS YPKS PADANGSIDIMPUAN Akid Nasution, Muhammad; Panjaitan, Agus Makmur; Nilasari Harahap, Adek
Eksakta : Jurnal Penelitian dan Pembelajaran MIPA Vol 6, No 2 (2021): Eksakta : Jurnal Penelitian dan Pembelajaran MIPA
Publisher : Fakultas Keguruan Dan Ilmu Pendidikan, UM-Tapsel

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/eksakta.v6i2.235-241

Abstract

The research aims to determine the effect of implementing the cooperatif learning model type Think Pair  and Share.This type of research is Quasi Research Experiments. The subjects of the study were classes VII-1 and VII-2 of 40 people. Women as many as 20 men and 20 men.The object taken in this study is the use of TPS learning models in an  effect of implementing of student learning concepts on algebraic subjects.the test results against the math problem solving level students obtained an average score of experimental group = 78.35 with the criteria "medium-skilled" and the control group = 72.5 with the criteria "medium-skilled". The test normality of the experiment class pretes obtained L0 = 0.1793< 0.190= Ltabel, while the control class pretes normality test obtained L0 = 0.1806 < 0.190= Ltabel. The experiment and control grade pretes homogeneity test was obtained at pretes Fhitung = 1,338 < 2.15 = Ftabel . Test normality postes class experiment obtained L0 = 0.1761< 0.190= Ltabel while and Test normality postes class control obtained L0 = 0.1352 < 0.190= Ltabel. Test homogeneity postes class experiments and controls obtained on on postes obtained Fhitung = 1,193 < 2.15 = Ftabel . For hypothesis test obtained thitung = 8.13 > 2.024= ttabel With dk numerator 2 and dk denominator 38 and odds of 0.95 (α = 0.05). Then H0 was rejected and Ha accepted.
KONDISI FAKTOR KUALITAS AIR DAN POLA PERTUMBUHAN IKAN LAMPAM (Ostiohilus harrisoni, Fauler 1905) DI SUNGAI MAILIL Dewi, Kyky Prantika
Eksakta : Jurnal Penelitian dan Pembelajaran MIPA Vol 6, No 2 (2021): Eksakta : Jurnal Penelitian dan Pembelajaran MIPA
Publisher : Fakultas Keguruan Dan Ilmu Pendidikan, UM-Tapsel

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/eksakta.v6i2.178-182

Abstract

Sungai Mailil memiliki keanekaragaman ikan yang cukup tinggi, salah satunya adalah Osteochilus harrisoni. Belum ada yang melakukan kajian terkait bioekologi Osteochilus harrisoni di Sungai Mailil.  Tujuan penelitian ini adalah mengetahui kondisi faktor kualitas air dan pola pertumbuhan ikan lampam di Sungai Mailil. Penelitian ini bersifat eksploratif, dimana pengambilan sampel ikan dengan metode purposive sampling. Ikan ditangkap 1 kali dalam setiap bulannya menggunakan alat tangkap berupa jala. Ikan yang ditangkap diambil data berat dan panjang totalnya. Pengolahan analisis data menggunakan aplikasi program Microsoft Excel 2010. Hasil pengukuran kualitas air yang dikutip meliputi: suhu (25-28 ˚C), kecerahan air (29-34 cm), kecepatan arus (0,62-1,08 m/detik), dan pH air (6). hasil dari pola pertumbuhan (W=1,0798L0,2005).
PENERAPAN MODEL PEMBELAJARAN QUANTUM TEACHING DALAM UPAYA MENINGKATKAN HASIL BELAJAR MATEMATIKA SISWA DI KELAS IV SD NEGERI 157618 HUTAGURGUR I Yolanda Silaban, Veronika; Arifin, Mohd.; Dewi, Nova Christina
Eksakta : Jurnal Penelitian dan Pembelajaran MIPA Vol 6, No 2 (2021): Eksakta : Jurnal Penelitian dan Pembelajaran MIPA
Publisher : Fakultas Keguruan Dan Ilmu Pendidikan, UM-Tapsel

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/eksakta.v6i2.274-280

Abstract

The Problem In This Research Is The Low Mathematics Learning Outcomes Of Students In The Material Of Simple Room Building In Grade IV SD Negeri 157618 Hutagurgur I, To Overcome This Problem In This Study The Application Of The Quantum Teaching Learning Model., This Research Is A Classroom Action Research. From The Results Of The Initial Test It Was Found That The Lowest Score Was 21 And The Highest Score Was 86. Studied) As Many As 13 People (59.09%). And The Mean Value Of The Initial Test Was 63.59. After Giving Action In Cycle I Through The Stages Of Implementing The Quantum Teaching Learning Model, At The End Of The Lesson, The Students Were Given A Test Of Learning Outcomes, So The Class Average Value Was 77.27. In The First Learning Outcome Test, It Can Be Seen That There Were 19 Students Who Completed Learning (86.36%) And 3 Students Who Did Not Complete The Study (13.64%).Based On The Results Of The Above Research, It Can Be Concluded That The Application Of The Quantum Teaching Learning Model Can Improve Student Learning Outcomes In Simple Building Materials In Class IV SD Negeri 157618 Hutagurgur I.
PERTUMBUHAN DAN PRODUKSI TIRAM (Pleurotus ostreatus) TERHADAP VARIASI JUMLAH BIBIT Permadi, Muhammad Agung; Mukhlis, Mukhlis; Haldiman, Haldiman; Lubis, Rafiqah Amanda
Eksakta : Jurnal Penelitian dan Pembelajaran MIPA Vol 6, No 2 (2021): Eksakta : Jurnal Penelitian dan Pembelajaran MIPA
Publisher : Fakultas Keguruan Dan Ilmu Pendidikan, UM-Tapsel

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/eksakta.v6i2.209-214

Abstract

Mushrooms are organisms that do not have chlorophyll so that mushrooms cannot carry out photosynthesis. One type of mushroom that is commonly cultivated and consumed is the oyster mushroom (Pleurotus ostreatus). Oyster mushroom is a wood fungus that belongs to the Basidiomycetes class. Oyster mushrooms grow wild attached to weathered wood in the wild, by utilizing cellulose, hemicellulose and lignin as carbon sources to build cell mass. The purpose of this study was to study the growth and production of oysters (Pleurotus ostreatus) against variations in the number of seeds. This study used a completely randomized design (CRD) with six replications. The treatment in this study was the difference in the number of mushroom seeds planted in each baglog, namely 5, 8, 11 and 14 seeds. The data obtained were analyzed with variance and further tested with the DMRT test at the 5% level. Based on the research, it was found that the number of oyster mushroom seeds planted in baglog affects the growth of mycelium, the fresh weight of the first harvest and the harvesting age. The more oyster mushroom seeds planted in baglog, the wider the growth ofmycelium, the heavier the fresh weight of the first harvest and the faster the harvesting age.
PENGOMPOSAN MENGGUNAKAN SAMPAH ORGANIK DENGAN BANTUAN M4 Prasetyo, Dody Rahayu; Aziz, Muhammad Trisna Abdul; Febriyanti, Rosa
Eksakta : Jurnal Penelitian dan Pembelajaran MIPA Vol 6, No 2 (2021): Eksakta : Jurnal Penelitian dan Pembelajaran MIPA
Publisher : Fakultas Keguruan Dan Ilmu Pendidikan, UM-Tapsel

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/eksakta.v6i2.151-154

Abstract

Fokus penelitian ini  adalah mengkaji lamanya waktu yang dibutuhkan untuk pengomposan. Metode penelitian ini adalah deskriptif kualitatif dalam pengolahan sampah organic. Hasil penelitian menunjukkan bahwa dalam waktu 30 hari pengomposan sudah menunjukkan ciri-ciri kematangan ditandai dengan berwarna cokelat kehitaman yang menyerupai tanah, memiliki bau khas seperti tanah tidak menyengat  maupun mengeluarkan  bau busuk, mengalami penyusutan volume dan penurunan kadar air. Pengomposan dengan bantuan EM4 (Effective Microorganism) dapat mempercepat dalam waktu pembuatan kompos dibandingkan dengan cara konvensional. 

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