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Media Eksakta
Published by Universitas Tadulako
ISSN : 02163144     EISSN : 2776799X     DOI : -
Core Subject : Science, Education,
Biochemistry, Genetics & Molecular Biology Chemistry Education Mathematics Other
The aim of this journal is to provide a venue for academicians, researchers, and practitioners for publishing original research articles or review articles. The scope of the articles published in this journal deal with a broad range of topics about mathematics and science in the field of mathematics, physics, biology, and chemistry, and then mathematics and science education in the fields of curriculum, instruction, learning, preparation of teachers, and environmental education.
Arjuna Subject : Ilmu Sosial - Pendidikan
Articles 87 Documents
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Analisis Kesalahan Siswa dalam Menyelesaikan Soal Cerita Persamaan Nilai Mutlak Berdasarkan Kriteria Watson Kelas X SMA Negeri 1 Sarudu Musdalifah Musdalifah; Bakri M; Sutji Rochaminah
Media Eksakta Vol 19 No 1 (2023)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/me.v19i1.3472

Abstract

This study aims to obtain a description of the types of errors made by class X students of SMA Negeri 1 Sarudu in solving absolute value equation word problems based on Watson's criteria. This type of research is descriptive research with a qualitative approach. The subject of this research was taken by three students out of 18 students consisting of two students who made many mistakes and one who made few mistakes. The results of this study were (1) the types of errors made by subjects who made the first mistake in solving absolute value equation word problems were inappropriate procedure, and omitted conclusion. (2) the type of mistakes made by subjects who make a lot of second mistakes in solving the absolute value equation story problem is inappropriate data, undirected manipulation, and omitted conclusion. (3) the types of mistakes made by the subjects who make few mistakes in solving the absolute value equation story problem are inappropriate procedure.
Uji Daya Simpan Biskuit Dari Formulasi Campuran Tepung Labu Siam (Sechium Edule) dan Kacang Hijau (Vigna Radiata) Mulyati Mulyati; Jamaludin Sakung
Media Eksakta Vol 19 No 1 (2023)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/me.v19i1.3478

Abstract

The study aims to determine the shelf life of biscuits from a mixture of chayote flour (Sechium edule) and mung bean (Vigna radiata) flour. The samples used in this study were biscuits made from chayote flour (Sechium edule) and Mung beans (Vignaradiata). This research was carried out in June-September 2020 which began with the manufacture of biscuits from the formulation of chayote flour and Mung beans.  Data analysis for estimating the shelf life of biscuits using the Arrhenius method. The results of the research using the ASLT method. Based on the results obtained, the shelf life of biscuits from a mixture of chayote flour (Sechium edule) and Mung bean (Vignaradiata) formulation was the highest, obtained by 100% chayote flour at 25 oC for 177 days. The highest 100% Mung beans were obtained at 25 oC for 176 days. The highest 50% chayote flour and 50% Mung beans were obtained at 25 oC for 187 days. The highest 75% chayote flour and 25% Mung beans were obtained at 25 oC for 170 days. The highest 25% chayote flour and 75% mung bean were obtained at 45oC for 195 days
Instrumen Gaya Berpikir: Membantu Adaptasi Kognitif dalam Penyelesaian Masalah Fisika Haeruddin Haeruddin; Jusman Jusman; Nurjannah Nurjannah; Muhammad Zaky
Media Eksakta Vol 19 No 1 (2023)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/me.v19i1.3484

Abstract

This study aims to develop an instrument to measure thinking styles and their impact on cognitive adaptation in the context of physics problem solving. Understanding how individuals approach and solve physics problems can provide valuable insights into cognitive processes and strategies used. The instrument consists of various tasks designed to depict different thinking styles commonly employed in physics problem solving. These thinking styles include concrete sequential (CS), abstract sequential (AS), concrete random (CR), and abstract random (AR) thinking styles. This research follows the Research and Development (R&D) model. The development model used is the non-test instrument development model. The instrument utilizes a forced-choice model by asking respondents to determine the order of statements that best align with their condition when solving physics problems. The instrument provides four options ranging from very inappropriate to very appropriate. A total of 683 first-year students at Universitas Tadulako participated in the pilot study, and 364 in the implementation study. The expert judgment data analysis technique used the Aiken's formula. Empirical data analysis was conducted using the Ques program to test goodness of fit to the Partial Credit Model (PCM), item validity, and instrument reliability. The content validity result showed an Aiken's V value of .81, and the test reliability was .90. The average infit MNSQ value was 1.00 with a standard deviation of .18. This study found that physics education students at Universitas Tadulako tend to have an abstract sequential (AS) thinking style. The implications of these findings can be utilized to measure students' thinking style tendencies when solving physics problems.
Development of Practicum Tools for Measuring Temperature and Air Humidity Based on Microcontroller by Telemetric Muhammad Zaky; Nita Carolina; Unggul Unggul
Media Eksakta Vol 19 No 1 (2023)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/me.v19i1.3485

Abstract

The purpose of this research is to make a temperature measuring instrument for air temperature and humidity on the device using the DHT11 sensor as a temperature and humidity sensor for the object under study, the ATMega328P CH340G microcontroller as data processing and the Bluetooth HC-05 module as an intermediary communication between the device and a smartphone. , utilizing App Inventor technology as a means of information quickly and accurately. The research method used in this study is the research and development method or known as research and development (R&D). This measuring tool is made using the Arduino Uno R3 module, which is programmed using the Arduino programming language. Based on the results of the study, it can be concluded that: 1) The measuring instrument is designed to be able to measure temperature and humidity in a place/room continuously, 2) the system can provide precise and accurate information on the temperature and humidity of the device to the user. The additional result is that apart from practical measuring tools it can also be used as a wireless monitoring tool for temperature and humidity for swiftlet houses which is useful for solving temperature and humidity problems in swiftlet houses as well as outputs of Intellectual Property Rights Products.
Impact of the Guru Penggerak Programme on Improving Leadership Competence in Numeracy Learning Imron Imron; Amir Mahmud; Achmad Samsudin
Media Eksakta Vol 19 No 1 (2023)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/me.v19i1.3648

Abstract

Education of Guru Penggerak is the Government's innovation to prepare for future leadership transformation. Before becoming a leader, the teacher mobiliser is required to be the main actor in classroom learning and mobilise peers through a community of practice. Thus, they are expected to become leaders in school management and development. Candidate of Guru Penggerak, after undergoing Education and Training for 6 months covering 10 modules, will become student-centred learning leaders. The implementation of quality student-centred learning has not been optimal and equitable from one region to another. The low level of literacy and numeracy in the education report card has led the Government to launch the Merdeka Belajar Programme. The purpose of the research conducted on prospective Guru Penggerak is to determine the impact of Education of Guru Penggerak on improving learning through improving grades during education and increasing competence in self-development and learning leadership, knowing the motivation of prospective Guru Penggerak after completing education and whether literacy and numeracy materials are needed. The research method uses quantitative descriptive research using data collection techniques of interviews, documentation, questionnaires and observations, pre-test-post test scores and questionnaires on prospective Guru Penggerak. The results obtained from this study are an average increase from the pre-test score of 50.80 to the average post-test score of 64.58 or an increase of 13.77. From the questionnaire, the competence of self-development and others increased from 76.82% to 87.35%. For learning leadership competence there was an increase from 73.03% to 85.04%
Kandungan Magnesium, Kalium, Kalsium Dan Fosfor Pada Produk Pangan Dari Tepung Biji Durian Irwan Said; Baharuddin Hamzah; Jamaluddin Sakung; Purnama Ningsih; Poppy Fitra Wahyuni; Rezki Rezki
Media Eksakta Vol 19 No 1 (2023)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/me.v19i1.3663

Abstract

Durian seed flour can be used for the manufacture of food products such as sticks and steamed sponges. Sticks and steamed sponge cake are foods that many people like from children to adults.  Durian seed flour is rich in minerals including magnesium, potassium, calcium and phosphorus. This study aims to determine the content of magnesium, potassium, calcium and phosphorus in food products from durian seed flour using Atomic Absorption Spectrophotometer (SSA) and UV-Vis Spectrophotometry.   The results showed that the magnesium content in the sticks of durian seed flour with formulation 1 (0% durian seed flour) amounted to 84,053 mg/kg, formulation 2 (50% durian seed flour) amounted to 145,213 mg/kg and formulation 3 (100% durian seed flour) amounted to 142,313 mg/kg.  Potassium content on sticks from durian seed flour with formulation 1 (0% durian seed flour) of 1,186 mg/kg, formulation 2 (50% durian seed flour) of 1,863 mg / kg and formulation 3 (100% durian seed flour) of 1,693 mg/kg.  The calcium content in steamed sponge from durian seed flour with formulation 1 (0% durian seed flour) of 30.37 mg/kg, formulation 2 (50% durian seed flour) of 37.84 mg/kg and formulation 3 (100% durian seed flour) of 35.84 mg /kg. While the phosphorus content n steamed sponge from durian seed flour with formulation 1 (0% durian seed flour) of 17.1 mg/kg, formulation 2 (50% durian seed flour) of 27.1 mg/kg and formulation 3 (100% durian seed flour) of 24.3 mg/kg.
The Effect of Guided Inquiry Model with Active-Reflective Dimensional Learning Style on High School Students’ Chemistry Learning Outcomes Meida Esterlina Marpaung
Media Eksakta Vol 19 No 1 (2023)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/me.v19i1.3672

Abstract

The mean values of MAN 2 Palu students on the topic of reaction rates in the last three years are low. The cause of low learning outcomes is learning that has not paid attention to students’ average learning styles. The learning model used in this study is a guided inquiry model with an active dimensional learning style. The research sample selection technique was purposive sampling by taking into account the average student learning outcomes. The research samples were 27 students in class XI MIA6 as an experimental class, learning with the model and class XI MIA4 with 27 students as a class, learning with a guided inquiry control model. The stages of the research were identifying students' learning styles in the experimental class, applying the ITG-Dia model in chemistry learning by observing attitudes and skills activities and ending with giving an evaluation. The results of the learning style assistance were obtained by 8 students with an active dimension style which were then distributed to each group before learning was carried out. The results of the experimental class research obtained an average altitude of 84.26 (very good); skills of 79.42 (good); learning outcomes of 83; n-gain of 0.78 (high). Control class observations obtained an average altitude of 85.93 (very good); skills 79,79,56 (good); learning outcomes 60.78; n-gain 0.50 (medium). The results of the t-test statistical analysis obtained t 13.12 and t 1.67. The results of the statistical analysis showed that there were significant differences in student learning in the experimental class and the control class. Based on statistical analysis, it can be concluded that the application of the active-reflective dimensional model affects increases students' chemistry learning outcomes.

Page 9 of 9 | Total Record : 87

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