PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) BERBANTUAN SIMULASI DIGITAL PhET INTERACTIVE UNTUK MENINGKATKAN HASIL BELAJAR MATERI PECAHAN PADA SISWA KELAS IV SD NEGERI BUMI AGUNG

Source abstract

This type of research is Classroom Action Research (CAR) with the Kemmis & McTaggart model design implemented in two cycles. Each cycle consists of four stages: planning, implementation, observation, and reflection. The research subjects were 13 fourth-grade students of SDN Bumi Agung (8 boys and 5 girls). Data collection used teacher activity observation sheets, student activity observation sheets, and cognitive learning outcome evaluation tests developed based on Bloom's Taxonomy (C1–C6). Results showed a very significant increase at each stage. The average pre-cycle score was 39.62 with a classical completeness of only 7.69%. After the intervention, Cycle I Meeting I increased to 71.53 (69.23% completeness) and Meeting II to 76.15 (76.92%). In Cycle II, Meeting I reached 78.08 (84.62% completeness), and peaked in Meeting II at 88.08 with a 92.31% classical completeness rate (12 students). Teacher activity increased from 63% to 93%, while student activity grew from 52.63% to 88.89%. It is concluded that implementing the Problem-Based Learning (PBL) model assisted by PhET Interactive digital simulation effectively improves learning outcomes for fraction topics among fourth-grade students at Bumi Agung Public Elementary School