“…The implementation of online learning is a solution during the COVID-19 outbreak and a problem for teachers who are not ready and do not have the skills to integrate technology, pedagogy, and content knowledge (TPACK) into learning (Nelson et al, 2018;Tanak, 2018). Previous TPACK research focused on training and development programs of teachers competence that have been planned, such as investigation of the biology teachers' TPACK in lesson study (Rochintaniawati et al, 2018), practical programs (Yeh et al, 2015), pre-service and in-service science teachers and professional development programs (Lin et al, 2013;Canbazoglu Bilici et al, 2016;Tanak, 2018) and especially on certified teachers (Antony et al, 2019;Hapsari et al, 2019). Besides, various methods to investigate teachers' TPACK have also been conducted, such as using observations of the lesson plans used by the teachers (Canbazoglu Bilici et al, 2016), online tasks (Oster-Levinz & Klieger, 2010), and surveys of teacher's TPACK in various planned programs (Koçoǧlu, 2009;Giannakos et al, 2015;Getenet et al, 2016;Cheng, 2017;Ciptaningrum, 2017).…”