The curriculum is content-focused and allows little time for concept mastery. There is a fundamental misconception about how children learn and the role of conceptual development in children’s cognitive development.
For example, how would one explain to a child what addition is if one does not make reference to other conceptual understandings (e.g. more, less, making more, making less, symbol for addition, symbol for subtraction). Without conceptual understanding learning is reduced to a mechanical and often meaningless activity.
Professor Emeritus Carl Haywood, Vanderbilt, USA