Effectiveness of Using E-learning at STEM-based Physics Learning to Improve Communication Skills of High School Students

This study aims to determine the effectiveness of e-learning in STEM-based physics instruction on students' communication abilities. research is a continuation development using Allesi and Trollip model, which three experts have validated make improve skills feasibly. The pre-experimental pretest-posttest design was used this study's methodology. Thirty-one students from class XI MIPA Senior High Schools made up sample for study. instrument skill observation sheet with observers compare impact before-after intervention, employed SPSS 25 conduct t-test n-Gain. results n-gain calculations show that learning can significantly an average score 0.62 medium category. highest increase oral (n-gain: 0.74), lowest student presentation 0.51). Furthermore, given value t-count<t-table 29.75<1.70, analysis utilizing yields H1 being accepted so developed be as revolutionary era 4.0 order able face demands 21st-century learning.