“…While in vocational high schools, chemistry subject is expected to provide basic skills for students to develop their expertise competencies (Indonesian Ministry of Education, 2016). For instance, automotive engineering students learn hydrocarbons to understand more about vehicles fuel and combustion systems (e.g., Febrianto, Wiyarsi, Partana, & Sulistyo, 2018;Wiyarsi, Pratomo, & Priyambodo, 2020), the understanding of electrochemical concept as basic for comprehending combustion system and corrosion of vehicles components (Febiana, Partana, Wiyarsi, & Sulistyo, 2018). That is, the teacher should use appropriate context in chemistry learning for vocational students.…”