Song-Based Materials and Filipino Kindergartens' Social and Emotional Development. Objectives: The study investigated the effects of song-based instructional materials to learners' social and emotional aspects. Methods: Employing the one-group quasi experimental design through purposive sampling, the researchers administered the intervention using the mother tongue to twenty kindergarten pupils (10 males and 10 females). Findings: Dependent t-test on the results showed a significant difference on social and emotional development. Furthermore, the materials built and enhanced the emotional and social aspects of the children because through the use of the students' mother tongue was incorporated in their daily activities. Conclusions: The use of original Filipino songs can be used in the day-today learning, which develops the social and emotional aspects of kindergarten pupils. These songs may help build and establish good social and emotional aspects of the child towards oneself and to others.