“…Lesson study (LS) as a model of teacher professional development has long been adopted and implemented in learning activities in Indonesia Saito et al, 2015;Suratno, Ni'mah, Zulkifly, & Nur'aini, 2009;Susetyarini & Miharja, 2017). Furthermore, LS was spread in various regions in Indonesia, such as Padang (Hardinata & Putri, 2019), Bali (Sudirtha, 2017), Ternate (Mas'ud et al, 2019), Malang and Batu (Hindun, Nurwidodo, Wahyono, Miharja, & Rais, 2018). Implementation of LS in Batu has been carried out since 2016 through collaboration between the Batu City Education Office and the University of Muhammadiyah Malang (Nurwidodo, Hendayana, Hindun, & Sarimanah, 2018).…”