Development of E-Module Teaching Materials for Writing Explanation Texts Based on Project Based Learning for Class XI Vocational High School

The lack of teaching materials used by educators, especially in the teaching of explanatory texts, has led to low learning outcomes among students. This is shown based on the results of observations, interviews with students, questionnaires to students, and supporting data through cognitive and non-cognitive diagnostic assessments. These data indicate that the low motivation and grades in explanatory text lessons among students are influenced by the unavailability of varied teaching materials. Based on this, the aim of this research is to produce teaching material products in the form of e-modules based on project-based learning, to test the feasibility of the product, and to test the effectiveness of the product for Grade XI vocational high school students in the teaching of explanatory texts. This research uses the Research and Development method, which consists of 7 stages: (1) analysis of potentials and problems, (2) data collection, (3) product design, (4) product design validation, (5) product revision, (6) product feasibility testing, (7) product effectiveness testing. This research was conducted at SMK N Pagelaran Utara. Data collection techniques were carried out through observation, interviews, questionnaires, and assessment test sheets in 6 classes that were the objects of the research. The results showed that (1) teaching materials for explanatory texts in the form of e-modules based on project-based learning for Grade XI vocational high school students were successfully developed and validated by material experts, media experts, and practitioners. (2) Teaching materials for explanatory texts in the form of e-modules based on project-based learning were declared very feasible by material experts, media experts, and practitioners with assessment percentages of 92%, 97%, and 95%. (3) Based on the effectiveness test, the explanatory text emodule based on project-based learning obtained an average N-gain index of (0.61) and (0.48) in Grade XI SMK N Pagelaran Utara, which falls into the medium category, thus the explanatory text e-module is declared effective for use in teaching. Keywords: e-module, project-based learning, explanatory text