Increase your awareness and ability to work effectively with diverse families in the community by identifying and developing strategies that will promote cultural competency. Apply anti-bias, diversity, and inclusion practices; promote child self-concept and esteem; and plan multi-cultural activities. 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 Community.