the district has been forced to postpone the Common Core-mandated PARCC state exams
But the Common Core DOES NOT mandate any particular exam or evaluation instrument of any kind. PARCC is, according to Wikipedia, "a coalition of 12 states and the District of Columbia that are working to create and deploy a standard set of K-12 assessments in math and English." PARCC is basing their assessments upon the Common Core standards, but it is PARCC that mandates the exams, not Common Core.
Common Core is, literally, just a list of skills that students should have at various grade levels. For example, sixth grade math students are supposed to be able to "Write, read, and evaluate expressions in which letters stand for numbers." That simple statement, and many like it, make up the Common Core. It has nothing to do with mandating exams.
The Common Core standards are freely available on the web, in case you would like to look at them: http://www.corestandards.org/r...