In complying to quality standards prescribed in the new normal period, SBINHS-Main will carry out its programs, projects, activities with compassion and understanding. Therefore, the Learning Continuity Plan is crafted to effectively address the needs of all learners employing various innovative strategies. The learning modalities that the school adopt are Modular Distance Learning where learners use self -learning modules in print or electronic copy, and teachers take the responsibility of monitoring the progress of the learners while in online distance learning, learners use various technologies accessed through the internet.As the school continue to confront the issues brought about by the pandemic, San Buenaventura Integrated National High School Main and Annex is addressing challenges through the Learning Continuity Plan. The field of Senior High School is one of the most rapidly evolving fields in education. Newer teaching methods are being evaluated and incorporated in secondary. One of the promising new methods is the blended learning approach that may involve an instructional sequencing, where online instruction precedes the group meeting, allowing for more sophisticated learning through discussion and critical thinking. This descriptive method and quasi-experimental research design were utilized in this study to determine the level of modular distance learning and online distance learning on the performance in mathematics, the level of mathematics performance of the students and the relationship between these challenges and issues in the use of blended learning approach in teaching mathematics and the mathematics performance of the students.