Coronavirus Disease 2019 (COVID-19) has been stated by the World Health Organization (WHO) as a pandemic. As a consequence, all teaching and learning processes have been conducted through e-learning. For that reason, this research aims at testing the computer-based drill learning and the conventional learning model through e-learning. The aspect that would be measured is the students’ mathematical reflecting thinking. The research method was the quasi-experimental by employing the pre-test, before the treatment, and the post-test after the treat-ment. The research design employs 2 classes, the 31 students of the control class and 30 ones of experiment class. The result reveals to us that a computer-based drilling learning model would be effective if it is viewed from the perspective of students’ mathematical reflective thinking ability. On the other hand, the conven-tional learning model would not be effectively viewed from the perspective of students’ mathematical reflective thinking.