This paper looked into the practical waste management of left pieces of board chalk (calcite) in the classrooms. Specifically, this study covers the preparation and application of board chalk (calcite) as plant growth enhancer. Observations on its effect on the growth of plants highlighted the findings of the study. It aimed to give educational information on the practical waste management of left pieces of board chalk in the classrooms. Experimentation was used with three treatments of varied ratio and proportion of soil and powdered chalk in order to validate the effect of powdered chalk on the growth of plants. The study concludes that powdered chalk is an effective growth enhancer for plants. It was found out that moderate proportion of soil and powdered chalk is more effective for the plant to grow faster, taller, healthier, and have stronger stem. It is recommended that teachers and students should dispose and collect pieces of chalk properly so that it will be readily available for the school gardener to use it as fertilizer for flowers and selected plants. It is also recommended for farmers to use powdered chalk (calcite) as growth enhancer for their farm plants.
