Systematic, objective observation of children is key to evaluating their development and planning learning activities. Become equipped with observation and assessments tools as well as appropriate methods of collecting and interpreting information while gaining a better understanding of the purpose of on-going assessment. 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 Child Development.