Implementasi Metode Defragmenting pada Mata Pelajaran Estimasi Biaya Konstruksi untuk Meningkatkan Kemampuan Analisis Siswa

Penelitian

Abstract

This research aims to examine the effectiveness of implementing the defragmenting  method in learning Construction Cost Estimation (CCE) in class XI DPIB 1 at SMK Negeri  1 Singosari. The research background is based on the complexity of CCE material that  demands high analytical skills, while many students still have difficulties in analogizing  formulas, converting units, understanding basic cost concepts, and planning budgets.  This research uses a descriptive qualitative approach with data collection techniques  including observation, interviews, and documentation. The results showed that the  defragmenting method, which consists of the stages of identifying errors in the structure  of thinking, scaffolding review, conflict cognitive, and disequilibration, was able to map  and improve students' analytical skills significantly. The average score of student  activities increased from the "sufficient" category to "good" with a success percentage of  57%, and the pretest to post-test scores increased by 62.2%. These findings confirm that  the defragmenting method is effective in helping students group concepts  systematically, overcome confusion in applying formulas and units, and increase  confidence in solving CCE problems. Thus, the defragmenting method can be used as an alternative learning strategy to improve learning outcomes in the subject of  Construction Cost Estimation in SMK.