Which of the following is/are essential features of a concept map in mathematics ? A. It represents a conceptual analysis of a concept using contributory sub-concepts. B. They are directional, with arrows showing which concepts are prerequisite for which others. C. They cannot be used for diagnostic purposes to identify difficulties in learning a particular concept. D. They cannot be used frequently as they are very time consuming. Choose the correct option :
CTET Paper II - Aug 2023, Q34 (Official PYQ)