Model Mental Mahsiswa dalam Memahami Pembiasan Cahaya dan Kaitannya dengan Kemampuan Memprediksi

Model mental adalah suatu representasi pengetahuan tentang obyek atau sistem. Representasi ini terbentuk melalui pengajaran dan pengalaman. Model mental akan menunjukkan kemampuan seseorang untuk memprediksi penyelesaian suatu masalah. Namun demikian belum diketahui seberapa jauh mahasiswa mampu menggunakan model mental mereka untuk memprediksi suatu fenomena fisika. Penelitian ini bertujuan untuk menyelidiki sekelompok mahasiswa yang terdiri dari 16 orang dan mempelajari model mental mereka dalam memahami Pembiasan Cahaya. Salah satu metodenya adalah melakukan serangkaian wawancara semiterstruktur. Selanjutnya penelitian inipun melaporkan hubungan model mental mahasiswa dan kemampuan mereka dalam memprediksi fenomena pembiasan cahaya. Hasil penelitian menunjukkan bahwa mahasiswa membuat model mental yang ternyata sangat variatif tentang Pembiasan Cahaya. Lebih dari 50% model mental mahasiswa ternyata memiliki cacat atau kelemahan karena tidak sesuai dengan teori ilmiah. Selain itu, beberapa mahasiswa berusaha untuk meneapkan model mental mereka untuk membuat prediksi pada tahap awal wawancara. Beberapa mahasiswa belum memahami hakikat sinar datang. Hubungan antara model mental dan prediksi menjadi makin kompleks seiring dengan berlanjutnya proses penyelesaian masalah.MODEL MENTAL MAHSISWA DALAM MEMAHAMI PEMBIASAN CAHAYA DAN KAITANNYA DENGAN KEMAMPUAN MEMPREDIKS

Pengaruh Penggunaan Tracker Pada Pembelajaran Gerak Harmonik Sederhana Berbasis Inkuiri Terbimbing Terhadap Keterampilan Interpretasi Grafik Siswa

This study aims to determine the effect of the use of video tracker on learning guided inquiry-based simple harmonic motion towards graph interpretation skills. The sample of this research is the students of class X MIPA 3 Bandar Lampung High School 15. This study uses One Group Pretest-Posttest Design with Paired Sample T-Test analysis techniques. Learning is done by conducting simple inquirybased harmonic motion practicum activities, then processing experimental data by analyzing experimental videos using the tracker application. Based on the results of the study, it was found that the average score of the skill in interpreting the graph had increased by 58.64% with the average NGain being (0.68) at the 95% confidence level. These results indicate that learning using a tracker can improve graph interpretation skills well. Based on the test results obtained significance of 0.00, it can be concluded that there are significant differences in students' graph interpretation skills before and after learning using tracker

Practicality and Effectiveness of Student’ Worksheets Based on Ethno science to Improve Conceptual Understanding in Rigid Body

Generally, the learning process in classes still used worksheets that does not link the matter and instructional topics with local knowledge of local area. Though it is able to increase the students' conceptual understanding of the specific physics topics. This study aimed to analyze the practicality and effectiveness student' worksheet based on Ethno science in improving student understanding of rigid body' concept. The study used a quasi-experimental with pretest-post test control group design. The sample was students' senior high school in Lampung' province, Indonesia. The sampling technique used simple random sampling technique. Data were obtain through the questionnaire, responses of teachers and students, and test of learning outcome in multiple choice questions reasoned type. Data were analyzed by percentage, N-gain, and effect size. The results showed that student worksheet based on Ethno science was practically using in learning and effective in improving conceptual understanding which is indicated by the differences in test results between the control and the experimental class

Development of Problem Based e-Module to Train Higher Order Thinking Skills on Temperature and Heat Material

The development of science and technology has become very sophisticated, where science and technology has had a significant impact on various areas of life, especially education. In this modern era, teachers must be able to take advantage of developments in technology and information in learning, for example using it as a learning medium to convey learning material to students. In fact, in schools the use of learning media to attract students' attention has not been implemented effectively and efficiently. So this research aims to develop a valid, practical and effective problem-based e-Module on temperature and heat material to train students higher order thinking skills. This research uses the Design and Development Research type of research which consists of four research stages, namely analysis, design, development, and evaluation using assessments of validity tests, practicality tests consisting of readability tests, student response tests, and perception tests. teachers, the effectiveness test consists of a normality test, N-Gain, and Paired Sample T-Test. In the validity test results, an average score of 3.50 was obtained in the very valid category. The results of the practicality test in the readability test obtained an average score of 82.64, which was categorized as very readable, in the student response test, an average score of 82.7 was obtained, which was categorized as very good, and in the teacher perception test, an average score of 83,3 was obtained which is categorized as very good. Meanwhile, for the effectiveness test based on the results of the students' N-Gain pretest-posttest, an average score of 0.45 was obtained in the medium category

Analisis Kesalahan Berbahasa di Surat Kabar Harian Sinar Indonesia Baru

Studi yang sudah dilakukan  ini  berniat  buat  menggambarkan   keluputan  berbincang di pesan berita setiap hari cahaya Indonesia hangat. studi ini yakni riset deskriptif kualitatif. akar data dihasilkan dari keluputan berbincang dalam  pesan berita.  kelalaian  berbincang  yang  dianalisis  berbentuk  keluputan pemakaian tulisan. teknik pengumpulan data yang dipakai yakni sistem pengarsipan. keterangan yang  pernah dihasilkan  selanjutnya dianalisis  memanfaatkan prinsip Miles and Huberman  yang  melingkupi pengecilan data, display  maupun penyajian data, selanjutnya  kesimpulan. berasas Hasil riset  ini ditemui    keluputan  berbincang  analisa kelalaian berbincang di pesan berita setiap hari cahaya Indonesia hangat adalah:  keluputan  pencatatan  huruf  yang  melingkupi  aset  serta  huruf  miring. kelalaian pencatatan  ujar yang melingkupi keluputan pencatatan ujar  depan, pengeratan huruf, serta ujar tukar. kelalaian pencatatan simbol baca yang melingkupi simbol baca titik serta simbol baca koma

The Validity of Multiple Representations-Based Blended Learning Program to Stimulate Complex Problem Solving and Reduce Learning Loss

This research aims to describe the validity of multiple representations-based blended learning programs to stimulate complex problem-solving and reduce student learning loss. The products developed for validation are in the form of syllabi, Lesson Plans, Electronic Student Worksheets (e-Worksheet), and e-Handouts. This type of research includes Research and Development (R&D) using the ADDIE development design which consists of five steps, namely analysis, design, development, implementation, and evaluation. This research is limited to the development stage. The analysis phase is the problem analysis step. The design stage is designing product development. The development stage, namely product development, is carried out by product validation by an expert validator using a validity test sheet instrument in the form of a questionnaire. Validation scores are accumulated to obtain validity values. The results of the investigation based on expert validation prove that the learning program developed is in the category of very high validity. This shows that this learning program is worth experimenting with in teaching and learning activities to find out the practicality and effectiveness of the product in stimulating complex problem-solving and reducing learning los

Development of H5P Moodle-Based Interactive STEM-Loaded Videos to Grow Performance Skills as an Effort to Overcome Learning Loss in Electrical Measuring Materials

This study aims to develop an interactive STEM-based video based on H5P Moodle that is valid, practical, and effective for cultivating performance skills as an effort to overcome learning loss in the material for measuring instruments. The research method used in this development is the R & D method using the ADDIE model which consists of five development steps namely: analyze, design, development, implementation, and evaluation. The data collection instruments used include: needs analysis questionnaires, validation test questionnaires, practicality test questionnaires, and effectiveness test questionnaires. The trial design using research products shows that the H5P Moodle-based Interactive Video developed is valid, practical, effectively used in the closed-eye learning process (PTTM) through blended learning to foster performance skills as an effort to overcome learning loss. The results of the validity test obtained an average percentage of construction validity of 92.00% and content validation obtained an average percentage of 87.00%. The results of the practicality questionnaire analysis showed that the STEM-based Interactive Video based on the H5P Moodle was stated to be practical with product legibility obtaining a percentage of 96.00% in the very good category. The results of the teacher's response test using Interactive Video with STEM-based H5P Moodle obtained a percentage of 87.60% in the very good category. For student responses the percentage is 87.00%, this indicates an interactive video with STEM content based on the H5P Moodle that was developed practically. Effectiveness is shown by the results of the analysis of the average percentage of achievement of performance skills in the experimental class of 87.50 and 73.00% in the control class. An increase in performance skills of 14.50% shows that Interactive Video with STEM content based on Moodle's H5P is very effective for growing performance skills as an effort to overcome learning loss

Development of Natural Disaster Mitigation LKPD Based on PJBL-STEM Assisted by Micro: Bit to Increase Self Awareness and Creative Problem Solving

This research aims to validate the PJBL-STEM-based natural disaster mitigation worksheet assisted by Micro: bit that has been developed. Validation was carried out by three experts, two of whom were academic experts in the field of education, and the other person was a teacher as a practitioner expert. The validation results show that the worksheet developed is very valid. The content validity of the worksheet obtained an average validity percentage weight of 89.1%, which was categorized as very valid; this shows the vital relevance of the content to learning objectives related to mitigating natural disasters due to global warming. The validity of the language aspect obtained an average weighted percentage of validity of 89.6%, which is categorized as very valid and shows excellent language quality and communication skills. Finally, the media and design's validity consists of cover and content aspects. The cover design received an average validity percentage of 93.5%, and the content design obtained an average validity percentage of 91.7%, so both are categorized as very valid. This confirms that the design of the worksheet, both the cover and the presentation of the contents, is perfect. These findings highlight that these worksheets maintain high-quality content, language, and design standards