Become more prepared to plan for a fun and safe playground as well as learn the role of the child care provider in supervising and implementing safety procedures from age appropriate and accessible playground equipment to appropriate supervision and safety checks. This course is designed to help you get your program aligned with Maryland EXCELS as well as help you reach higher Maryland Child Care Credential levels. Credential Boosters are classes that are identified by the Maryland State Department of Education in the Staff Credential modifications for levels 2, 3 and 4. Maryland State Education Core of Knowledge: 3 hours Health, Safety and Nutrition.