PENERAPAN MODEL PROBLEM BASED LEARNING UNTUK MENINGKATKAN HASIL BELAJAR DAN KETERAMPILAN PEMECAHAN MASALAH MATEMATIKA MATERI BARISAN DAN DERET PADA PESERTA DIDIK KELAS X PERBANKAN SYARIAH SMK DIPONEGORO BANYUPUTIH TAHUN PELAJARAN 2021/2022

The low learning outcomes of mathematics among vocational high school students are because the teacher only focuses on using the lecture method in the learning process, leading students to get bored easily. This study aims to determine the improvement in learning outcomes and students’ problem-solving skills through Problem-Based Learning on Sequences and Series Material. This study is class action research carried out in three research cycles. Each cycle consists of four stages: planning, implementing, observing, and reflecting. Data collection techniques in the study include the test, observation, and interview. The instrument used is the student learning outcomes test. The data were then analyzed using descriptive analytic and qualitative descriptive analysis techniques. The results show that the average student learning outcome in cycle 1 was 69.38, with a problem-solving skill score of 67.92. In cycle 2, the average learning outcome was 77.08, and the problem-solving skill was 74.17. Furthermore, in cycle 3, the average learning outcome was 83.75, and the problem-solving skill was 81.67. Learning completeness in cycle 1 reached 62.5%, and problem-solving skills reached 58.33%. For cycle 2, the completeness of learning outcomes reached 75%, and problem-solving skills only reached 70.83%. Meanwhile, in cycle 4, the average learning outcome was 87.5%, and the problem-solving skill was 83.33%. It can be concluded there was an improvement in student learning outcomes and problem-solving skills in each cycle. In other words, implementing the problem-based learning model can significantly improve mathematics learning outcomes, especially in the material of Sequences and Series.Keywords: Learning Outcomes, Problem Solving, Problem Based Learning Models