The Influence of Discovery Learning Model Towards Student’s Mathematical Concept Comprehension.This experimental research aimed to know the Influence of discovery learning model towards student’s mathematical concept comprehension. The population of this research was all students of class VIII SMP Negeri 1 Natar in academic year 2018/2019 as many as 300 students that were distributed into11 classes.The sampling was done by purposif sampling technique and it was chosen students of VIII A as many as 25 students and VIII B as many as 30 students as samples. The design used was the randomized pretest-posttest control grup design. The data in this researh were obtained by mathematical concept comprehension test.The data analysis of this research used  t-test. Based on the result of research, it was concluded discovery learning model have an effect on students conceptual understanding of mathematics.

Keyword: discovery learning, understanding of mathematical concepts