Final answer:
The abbreviations 'COA' and 'CON' likely refer to historical subject matter in a high school curriculum, possibly relating to American chronological history and constitutional studies, but more context is needed to determine their exact meaning.
Step-by-step explanation:
The abbreviations mentioned in the question, specifically 'COA' and 'CON', relate to key thematic areas in various fields of study. In the context of the provided reference information, it could be inferred that these abbreviations pertain to subject matter in a high school history curriculum. 'COA' could potentially stand for 'Chronology of America' while 'CON' might represent 'Constitutional studies.' These subjects often entail studying different periods and key events in history, the evolution of political thought, and the development of governmental systems.
However, without additional context, it is challenging to provide an exact definition for these abbreviations since they can potentially represent diverse content areas in different educational materials or curricula.