This study aims to determine students’ profiles of learning styles, levels of higher-order thinking skills, and the effect of differences in students’ competence to various HOTS instruments using the Science Adaptive Assessment Tool application. In this study, researcher used the descriptive survey approach. The subjects of this study were 251 students of grade 8 (Al-Zahra Indonesia Secondary school and MTsN 1 South Tangerang (Islamic Secondary school) academic year of 2019/2020. The research instrument used was a test to measure 21st century skills (HOTS), which varied on the learning styles of students studying natural science (Biology and Physics). The instrument was validated by expert judgment and empirically tested in order to obtain instrument reliability of learning style with adequate to high category variations. The results shows: (1) the profile of the most popular student learning styles is the assimilator (27,50%), while at least it is converger (20,71%); (2) Females tend to have assimilator learning style pattern, while males tend to have an accommodator learning style; (3) The higher-order thinking skills level in the Biology material was moderate (an average score of 39,69 from a maximum score of 70). The physics subject is in the lower category (an average score of 21,28 from a maximum score of 70); (4) The achievement of the HOTS score was influenced by the type of learning style and had average of a very small correlation, (5) There was significant difference incompetence across the Kolb’s learning styles—divergers, assimilators, convergers, and accommodators with the use of various HOTS instruments.

This study aims to develop and produce a three-tier test digital instrument to identify misconceptions in the concept of fluid statics. This research is categorized as research development. Stages of development used is stages according to Van den Akker, consisting of (1) preliminary study, (2) prototyping stage, (3) summative evaluation, and (4) systematic reflection and documentation. The study was conducted at four high schools in South Jakarta. This development research produce 17 items of three-tier test instrument digital on Google Form in concept of fluid statics, misconception analysis, and usage instructions. Threetier test developed is effective because have content validity (CVI = 0,9), contruct validity (r = 0,6), and item validity (r> 0.4). Based on the research stage, the digital test instrument has practical and ready to be implemented. Acceptance of teachers and students of the three-tier digital instrument test gives positive response, acceptability of 100% for teachers and 66.7% for students. AbstrakPenelitian ini bertujuan untuk mengembangkan dan menghasilkan instrumen digital three-tier test untuk mengidentifikasi miskonsepsi pada konsep fluida statis. Penelitian ini dikategorikan sebagai penelitian pengembangan. Tahapan pengembangan yang digunakan adalah tahapan menurut Van den Akker, yang terdiri dari (1) penelitian pendahuluan, (2) tahap prototipe, (3) evaluasi sumatif, dan (4) refleksi sistematik serta dokumentasi. Penelitian dilakukan di 4 SMA Negeri di Jakarta Selatan. Penelitian pengembangan ini menghasilkan instrumen three-tier test menggunakan Google Form sebanyak 17 butir soal pada konsep fluida statis, analisator miskonsepsi dan petunjuk pengguaan. Instrumen yang dikembangkan efektif karena memenuhi validitas konten (CVI = 0,9), validitas konstruksi (r = 0,6), dan validitas butir soal (r > 0,4). Berdasarkan tahapan penelitian, instrumen tes digital sudah praktis dan siap diimplementasikan. Penerimaan guru dan siswa terhadap instrumen digital three-tier test memberikan respon yang positif, dengan penerimaan 100% untuk guru dan 66,7% untuk siswa dari responden yang diwawancarai.

Students with their different learning styles also have their own different learning approaches, and teachers cannot simultaneously facilitate them all. Teachers’ limitation in serving all students’ learning styles can be anticipated by the use of computer-based instructions. This research aims to develop ScEd-Adaptive Learning System (ScEd-ASL) as a computer-based science learning media by accommodating students’ learning style variations. The research method used is a mixed method at junior high schools in Tangerang Selatan. The final product of the research is a special learning media appropriate to students’ visual, aural, read/write and kinesthetic learning styles. The uniqueness of the media is its form of integrated science materials, accommodating fast and slow learners, and appropriate to their learning styles. ScEd-Adaptive Learning System as a developed computer-based science learning media was declared as good and valid by four media experts and five learning material experts. ScEd-ALS for kinesthetic style has a high effectivity to improve students learning mastery (100%), consecutively aural (63%), read/write (55%), and visual (20%). This media development can be continued with the Android version or iOS to make it more operationally practical. Keywords: adaptive learning system, science learning media, computer-based instruction, learning style.

Ubiquitous learning has recently gained increasing popularity in the education sector, which significantly increased the efficiency of individual and collaborative learning. The aim of this study is to develop an Android version of science education-adaptive learning system (ScEd-ALS) as a science learning medium to accommodate various learning styles. The method used in this research is a mixedmethod consisting of a qualitative method, which is a developmental method that provides illustrations concerning the process of creating the developed media, and a quantitative method, which utilizes quasi-experiments to determine the effectiveness of the developed media application. The study comprised 114 eighthgrade junior high school students and three integrated science teachers in South Tangerang. The final product of the study is an Android-based science learning medium that conforms to the visual, aural, reading/writing, and kinesthetic student learning styles. Hence, this Android-based ScEd-ALS was found to be feasible and useful, as assessed by five experts (two media experts and three science education material experts). Nonetheless, there were significant differences in the learning outcomes between the experimental class using the Android version of ScEd-ALS compared to the control class. The effectiveness of using ScEd-ALS in this study was measured based on the percentage of students' mastery level. ScEd-ALS Android based on visual and kinesthetic learning styles are the most effective media compared to aural and read/write.

The main problem of this study is that students who are not able to gain the minimum score were not given remedial teaching and learning that were adjusted to their learning style. This study aimed to determine the effect, improvement, and effectiveness of the use of projectile motion props in remedial teaching on kinesthetic style students learning outcomes and students’ response to the use of the props. The research method used in this study was a quasi-experiment with nonequivalent control group design. Hypothesis test results of the post-test results with the Mann-Whitney U test at the confidence level of 95% (α = 0.05) obtained the significance value (2-tailed) that was 0.000. Alternative research hypotheses (H1) were accepted (there were effects of projectile motion props on remedial teaching on kinesthetic style student learning outcomes). The kinesthetic style student in the experimental group successfully gained 0.64 (middle category) in their learning outcomes, and the controlled group students gained less only 0.31 (middle category) in their learning outcomes. In the cognitive domain of C2 (understanding), the experimental group students experienced the highest increase, which was 0.72, while the controlled group gained only 0.50. The effectiveness of remedial teaching in the experimental group was very effective (80%); meanwhile, in the controlled group, it showed ineffectiveness (28%). Students of kinesthetic style’s response are very good (81%) on the use of projectile motion props.