Mathematics education is compulsory in most secondary curriculums around the globe and is a critical discipline among the STEM subjects. Therefore, as a subject that is highly practical in multiple fields and curriculum subjects, developing mathematical instructional approaches that enhance mathematics education is necessary. This study investigated the influence of mathematical Internet memes in secondary mathematics education. The mixed method research approach was applied, and data collection techniques used were observation, achievement tests, questionnaires, and focus groups. The results revealed that integrating mathematical Internet memes in mathematics classrooms enhances students' motivation and engagement. Moreover, the study revealed that mathematical Internet memes provide similar feedback as traditional formative assessment and, therefore, a viable alternative tool for formative assessment. The study further showed that integrating mathematical Internet memes has no significant impact on learners' performance in mathematics. However, results from the focus group indicate that students believe that integrating mathematical Internet memes in mathematics classrooms can potentially improve their performance in mathematics.