The Effectiveness of PjBL Learning on Interest and Mathematical Creative Thinking in Determining the Number of Construction Workers for 11th Grade Students in the Construction Department

Abstract

This study aims to determine the effectiveness of PjBL (Project-Based Learning) in enhancing students' learning interest and creative thinking skills in mathematics, particularly on the topic of solid geometry, at SMK Negeri 4 Ambon. The main focus of the study is to examine the implementation of project-based math learning in the context of the productive field, namely the building department, and its contribution to students' ability to identify and solve mathematical and technical problems, especially in determining the number of construction workers based on AHSP – SNI standards. This study was conducted in the 11th-grade building department class with a total of 69 students. To obtain accurate data, observation techniques, questionnaires, portfolios, rubric assessments, and presentations of students’ work were used. The collected data will be analyzed using descriptive analysis, while the calculation of the Number of Construction Workers (Productive Field) based on AHSP-SNI will use the formula : (8 Working Hours x Building Area) / (Desired Time). The research results show that the average learning interest of eleventh-grade students is 97.10%, students' creative thinking ability is 87%, the ability to determine building components in class XIA (experimental class) and class XIB (control class) is in the good category, the ability to determine the number of construction workers for one month in both class XIA and class XIB is in the Good category, while for two and three months it is in the very good category