Adi Satrio Ardiansyah, Arum Dinasari, Faridah Shahwatul Hamidah, Nico Caesario, Daru Prastiyo, Dian Pramudhita Wardani, Wahyu Rahmadhani Aji, Ajeng Dian Pertiwi, Eny Widyastuti
This study aims to develop quality textbooks by combining the CBL model with STEM nuances assisted by QR-Code on Indefinite Integral material for students' critical thinking skills. This study uses a 4D research method which is adjusted into three stages, namely define, design, and develop. At the development stage, an assessment is carried out for testing feasibility tests for experts and practitioners, readability tests for 12th graders, and student responses for 11th graders through a questionnaire. The results of the assessment were analyzed using a descriptive percentage technique by converting quantitative data into percentage form, then interpreting them with qualitative sentences. The feasibility test was carried out by 10 validators consisting of 5 experts in mathematics education and 5 high school mathematics teachers (practitioners); the readability test was conducted by 15 students in grade 12; and the results of student responses were carried out by 13 students in grade 11. The results showed that this textbook has good quality where the feasibility value obtained an average percentage of 85.92% with a very decent category, the readability score obtained an average percentage of 87.6% with a category easily understood by students, and student responses to this teaching material obtained an average percentage of 96.5% with a very good category. These results indicate that the product developed is of high quality towards students' critical thinking skills. Thus, the Indeterminate Integral Textbook which is integrated with CBL-STEM assisted by QR-Code can be used in mathematics learning for 11th grade high school students or 11th grade vocational students to develop students' critical thinking skills. © 2024 Author(s).
Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, Sekaran, Gunung Pati, Jawa Tengah, Semarang, 50229, Indonesia; SMA Negeri 4 Semarang, Jl. Kr. Rejo Raya No.12A, Srondol Wetan, Banyumanik, Jawa Tengah, Semarang, 50263, Indonesia; SMA Negeri 3 Magelang, Jl. Medang No.17, Rejowinangun Utara, Magelang Tengah, Jawa Tengah, Magelang, 56127, Indonesia; SMAK Bogor, Jl. Binamarga I No.19, Jl. Pakuan, RT.06/RW.08, Baranangsiang, Bogor Timur, Jawa Barat, Bogor, 16143, Indonesia; SMA Labschool Kebayoran, Jl. KH. Ahmad Dahlan No.14, RT.2/RW.1, Kramat Pela, Kebayoran Baru, Jakarta Selatan, Daerah Khusus Ibukota, Jakarta, 12130, Indonesia; SMA Negeri 2 Mranggen, Jl. Pucang Peni Raya, Pucanggading, Batursari, Mranggen, Demak, Jawa Tengah, 59567, Indonesia
