ABSTRACT

This research aims to developt an e-module using the contextual teaching and learning (CTL) approach to improve students critical thinking skills in system of linear equations three-variable (SPLTV) that is valid, practical, and effective. This research employs a Research and Development (R&D) design with the ADDIE model, consisting of five stages: Analysis, Design, Development, Implementation, and Evaluation. The instruments used in this study include validation sheets, teacher and student response questionnaires, lesson implementation and student activity observation sheets, and critical thinking tests. The subjects of this study were 20 tenth-grade students of MA MDIA Bontoala Makassar. Based on the results of the trial, it was found that (1) the validation results by the validator team were 4.17, categorized as valid because it was within the interval [interval range]. (2) The results of the practicality criteria obtained based on the teacher response questionnaire were 87.5% with a very positive category and the implementation of learning obtained a value of 1.79 with a fully implemented category, from both analysis results, the e-module meets the practical criteria. (3) The results of the effectiveness criteria obtained based on the student response questionnaire were 80% with a positive category, student activity obtained a value of 88% with a very good category, and the critical thinking skills test obtained an N-Gain score of 65% with a fairly effective category, so that the e-module meets the effectiveness criteria. Thus, it can be concluded that the e-module with a contextual teaching and learning (CTL) approach to three variable linear equation systems (SPLTV) material meets the criteria of validity, practicality, and effectiveness. Therefore, it can be concluded that this e-module is declared to be of good quality and can be applied in learning activities.

Keywords: E-Module, Contextual Teaching and Learning (CTL), Three-Variable Linear Equation System (SPLTV)