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Normalization is an important database design method, in the course of the teaching of data modeling the
understanding and applying of this method cause problems for students the most. For improving the efficiency
of learning normalization we looked for alternative normalization methods and introduced them into
education. We made a survey among engineer students how efficient could they execute the normalization
with different methods. We executed statistical and data mining examinations to decide whether any of the
methods resulted significantly better solutions.