This study was conducted to determine how the teacher-made video lessons help improved the learning performance of the students under the blended learning modality. The teacher-made video lessons consist of 5 videos on the topics of Measures of Position. The participants of the study were the selected Grade 10 students from six different sections under the general curriculum. The quantitative data were collected from pretest and posttest results and were analyzed using Wilcoxon signed-ranked test. The qualitative data were collected through interviews that were answered by the students and were analyzed using thematic content analysis. Findings showed that the teacher-made video lesson as an alternative to actual teacher-lecture helped increase students’ performance in Mathematics in their independent learning. The qualitative data revealed that the participants were more interested in studying their Learning Activity Sheets with the aid of the teacher-made video lessons.