Implementation of Teaching at the Right Level (TaRL) Approach to Improve Learning Outcomes in Thermochemistry at SMAN 7 Palu

Abstract

This study aims to improve the learning outcomes and conceptual understanding of grade XI-2 students at SMA Negeri 7 Palu in thermochemistry through the application of the Teaching at the Right Level (TaRL) approach. The type of research used was Classroom Action Research (CAR), which was carried out in two cycles, each cycle consisting of the planning, implementation, observation, and reflection stages. There were 25 students with heterogeneous initial abilities as research subjects. Data were obtained through learning achievement tests, activity observation sheets, student response questionnaires, and documentation, which were then analyzed descriptively, quantitatively, and qualitatively. The results showed an increase in learning outcomes from an average of 71.25 in cycle I to 83.90 in cycle II, with classical mastery increasing from 65% to 92% and an N-Gain value of 0.52 (medium-high category). Student activity and response also increased from medium to good. The application of the TaRL approach helped students learn according to their level of mastery, creating adaptive, collaborative, and meaningful learning.