This study determined the level of performance productivity of teachers and effectiveness of public elementary schools. This study employed the non-experimental descriptive survey research design in investigating the research problem. The respondents are the 115 public elementary teachers who are in a plantilla position or in a permanent status teacher in Santa Cruz North District, Division of Davao del Sur using slovin’s formula. The data analysis utilized the mean, Pearson r, and regression analysis. The finding revealed that the level of performance productivity of teachers in terms of; Classroom Instruction, Classroom Discipline, Learning Outcome, and Community Linkages was always manifested. Moreover, the level of effectiveness of public elementary schools in terms of; Academic Achievement, School Environment, Parental Involvement, and Curriculum Instruction was always manifested. Furthermore, the study found that there is a significant relationship between Performance Productivity of Teachers and Effectiveness of Public Elementary Schools, all components of performance productivity of teachers influenced of the effectiveness of public elementary schools. These findings compliment Human Capital theory which suggests that the skills, knowledge, and competencies of teachers directly impact the productivity of public schools.