Abstract

The efforts of teachers to improve students 'ability to understand concepts are to package
mathematics learning into learning that can foster students' motivation and passion for
learning. The selection of the right learning model by the teacher can make learning effective
and fun. One alternative learning model that makes students learn mathematics is fun is the
MASTER lesson. This study aims to determine whether students' conceptual comprehension
abilities with MASTER learning models are better than PBL learning models. This research is
a quantitative research with a form of experimental design that is quasi experimental design
.The population in this study were all students of class XI IPS SMA N 1 Doro in the academic
year 2017/2018. The data collection methods used in this study are of two kinds, namely
interviews and tests. The method of data analysis in this study used the t test. Before the t test,
the prerequisite test is first, namely normality and homogeneity test. Based on the calculation
of the t test, the results obtained that t value of tcount = 2.133 and t0.025; 39 = 2.023, so that
tcount> t0.025; 39 then Ho is rejected. This means that the MASTER learning model
produces a better understanding ability of concepts than the PBL learning model.
Keywords: MASTER, PBL, Concept understanding ability