Do you want to make a difference? EHS teachers provide educational services to children 0-3 years and their families. This period of development is the most rapid period of development of one's life. Intervention and educational experiences during this period permanently change developing brains! Responsibilities and Duties Substitutes fill in for teachers in the classroom to meet the needs of the children. Come join a committed, caring team of early childhood professionals who work tirelessly to provide the highest quality of services to our families! Qualifications and Skills High school diploma or GED required. All subs have the opportunity to engage in on-going professional development.