One of the most challenging daily experiences of teaching young adolescents is helping them transition from Piaget's concrete to the formal operational stage of cognitive development during the middle school years. Students who have reached formal operations can design and test hypotheses, engage in deductive reasoning, use flexible thinking,…

A common concern raised by teachers from secondary schools and junior colleges in Singapore is the apparent inability or reluctance of adolescents to think critically and originally. Adolescent thought processes are probably shaped by the change in intellectual pace and quality between the primary and secondary school curriculum. This study of…

The cognitive development and affective development of Korean secondary school students were studied to obtain information for the development of curricula and texts, particularly for teaching the English language. Subjects responding to objective tests included 3,164 male and female students from 54 classes of 18 middle schools, and 1,981 male…