Pengembangan E-Modul Berbantuan Sigil Software Dan Analisis Kemampuan Berpikir Kritis Siswa

E-Module Development Assisted by Sigil Software and Analysis of Students' Critical Thinking Ability. This development research aims to: (1) produce e- module assisted by sigil software on enumeration rules material, (2) analyze students' critical thinking skills in using e-module assisted by sigil software after enumeration rules material. This research and development refers to the development design steps developed by Alessi & Trollip. The development design consists of three stages, including: (a) the planning stage, (b) the design stage, and (c) the development stage. Product trials consist of alpha test and beta test. The alpha test was carried out by two material experts and two media experts. While the beta test consists of two stages of data collection, namely the beta test 1 and beta test 2. The beta test 1 involves 30 students of class XII. Beta test 2 involves 27 students of class XI SMKN Animal Husbandry Lembang. Data collection used questionnaires for material experts, questionnaires for media experts, student response questionnaires, and test instruments. This study (1) produces an e-module assisted by sigil software on the material of enumeration rules, (2) the resulting product is effective for use in improving critical thinking skills, as evidenced by the material expert's assessment of 4.19, media expert's assessment of 3.97, and the effect size value. amounting to 4.37.