Implementation of the teaching at the right level approach to improve mathematics learning outcomes of class X.15 students

This research aims to improve student learning outcomes in class X.15 of SMA Negeri 2 Tanjungpinang by applying differentiated learning based on a cognitive level, namely the Teaching at The Right Level approach.This type of research is classroom action research with research subjects of 48 students in class X.15 of SMA Negeri 2 Tanjungpinang.The data collection techniques used are observation, tests, and documentation.This research was carried out in 2 cycles.Before conducting classroom research, a cognitive assessment is first carried out to determine the student's cognitive level.In cycle I, the average student score was 76, and the average classical percentage was 64%. 31 students scored above the KKM, namely 75, while 17 others still scored below the KKM.In cycle II, the average student score was 85.6, and the average classical percentage was 87%.42 students scored above the KKM, namely 75, while 6 others still scored below the KKM.Thus, it can be concluded that applying differentiated learning based on cognitive levels, namely the Teaching at the Right Level approach, can improve student learning outcomes.