This study is to analyze the students' conceptual change on the kinetic theory of gases afterward learning with a computer simulation-assisted conceptual change model. CS-CCM consists of six phases; 1) commit to a position 2) expose beliefs 3) confront belief 4) accommodate the concept 5) extend the concept 6) go beyond. CS-CCM was conducted to 27 students (average age of 17 years old) who came from one of high school in Belitung. The research method was pre-experimental design with a one-group pretest-posttest design. The instrument used a four-tiers test-kinetic theory of gases (FT-KTG) consisting of 11 questions and the results of the test categorized into five categories of students' conceptions, consisting of; sound understanding (SU), partial understanding (PU), misconception (MC), no understanding (NU), and not being encoded (UC). Students' conceptual change is based on students' pre-test and post-test conception profiles. There are six types of changes in students conceptions; reinterpretation (Ri), revision (Rv), construction (Co), disorientation (Di), scientific conception from the beginning (Sc), and static (St). The results show that 86% of students whose conceptual change are in the "satisfying category" and CS-CCM is effective can be used as a learning model to change students' conceptual.

The COVID-19 pandemic has significantly impacted all aspects of our lives including educational practices. The social distancing and restrictive movement policies have forced institutions across the globe to shift from conventional to online learning methods. This makes the learning process more difficult, not just for regular students but also for international freshmen. This study aimed to evaluate the effects of online learning on international freshmen’s academic exposure. Qualitative research was done using a single case study of an international freshman at Universitas Nahdlatul Ulama Surabaya, Indonesia who due to the pandemic had to begin the session with online classes. Data were collected through in-depth interviews using Zoom meetings and documentation. The interview was focused to find out students’ approach toward online learning and academic exposure during the COVID-19 pandemic while the documentation was done to know the results of academic exposure. It was found that the students had a cultural shock in terms of language and network connection. Therefore, the authors recommend the universities to provide a supportive environment to freshmen and the students to work on their adaptive capability for such situations. Keywords: academic, freshman, online learning, student, case study