The learning process in class can be a trigger for students' low Mathematical Literacy Skills (KLM) so that improving the learning process and increasing students' KLM through the application of the Problem Based Learning (PBL) model is the aim of this research. The research carried out was Classroom Action Research (PTK) with two cycles on 35 students in class VIII-3 of SMP Negeri 5 Pekanbaru.…