Abstract
Abstract The Aim of this research was to evaluate the influence of Mobile-NOS model of learning application towards Students’ Understanding of the Nature of Science. In the form of pre-experimental research, this study has been carried out by pretest-posttest non-control group design. The research subjects consisted of 27 students participating in the Basic Chemistry II course in the chemical education program of IKIP Mataram academic year 2018-2019 collected by saturated sampling. The Nature of Science Data was obtained using the Understanding of Nature of Science questionnaire. Data were analyzed by paired sample t test. The results showed significant enhancement on students’ understanding of the nature of science after Mobile-NOS model of learning application. The value of t count (5.353) is greater than the t table (1.706) in the one-way hypothesis.