In many schools class participation constitutes major part of the grade silence in the class is a threat to students ' grade . One more important moment is that formal and relational knowledge is different in education system . For example , most school systems are concentrated on formal teaching , as Tannen says ``the tendency to value formal , objective knowledge over relational , intuitive knowledge grows out of our notion of education as training for debate (Tannen , 1998 ) Further , education in Europe is challenged by...











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