Developmental Stages Page 3 learning in the classroom . Teachers can help by being sensitive to this issue and thus provide encouragement and positive feedback on improvements made by students , or to assign presentations in groups of two , where the team presents it to the class to diffuse the feeling of being scrutinized . According to Piaget (1972 ) by the time a person reaches adolescence , he /she begins the final phase of intellectual development , which is called formal operation . This stage is...











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