The study aims to identify the effectiveness of distance learning of mathematics from the perspective of the public-school teachers during the COVID pandemic. Differences of statistical significances between the answers of the participants were registered. To achieve the desired goals, researchers employed the descriptive approach; a questionnaire was designed to collect the necessary information from the research sample (125) teachers. Results show that effectiveness of distance learning of mathematics from the teachers' point of view was average. Regarding the fields, the field of objectives of the activation of mathematics curriculum distance learning came first whereas the liabilities of distance teaching of mathematics occupied the last place. No variations of statistical significance emerged regarding the distance teaching of mathematics in relation to the study variables. The research is expected to contribute usefully to the scientific community as it handles a global incidence and its implications within a developing country with limited resources and capabilities. The gap that the paper attempts to address is one of great significance as it answers pivotal questions on how technology in education can be a real hope for educational achievement in a marginalised area of the world.