“…is the development of teaching materials. The product produced from development research is a PISA model mathematical problem that is valid, practical, and has potential effects Dasaprawira, Zulkardi, & Susanti, 2019;Efriani, Putri, & Hapizah, 2019;Jannah, Putri, & Zulkardi, 2019;Maharani, Putri, & Hartono, 2019;Rawani, Putri, & Hapizah, 2019;Yansen, Putri, Zulkardi, & Fatimah, 2019;Lestari & Putri, 2020;Usnul, Johar, & Sofyan, 2019; and learning tools (Utami & Nirawati, 2018;Ekawati, Susanti, & Chen, 2020;Zulkardi & Putri, 2020). PISA research focus that is often researched is the analysis of students' abilities and PISA model mathematical questions.…”