The purpose of this action research project is to determine the impact of explicit social emotional instruction in the kindergarten classroom. Quantitative data was collected through behavior reports to determine the effects that this instruction had on students' behavior. The kindergarten class consisted of 20 students, including eleven females and nine males. The research was done during winter of 2019-2020. Social emotional lessons were implemented over a four-week period to the kindergarten class. Data were collected to determine if negative behaviors decreased after implementing these lessons. It was concluded that implementing social emotional instruction for the four-week period did have a positive effect on student behavior.