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Abstract: This is an experimental research on the efficiency of controlledmastery of concepts in class-teaching, through an equivalent-groupedexperiment. The results indicate that controlled mastery might be ableto improve the students' ability to master concepts and the effect seemsstable. The correct action cultivated in this way can be transferred tolearning new concepts in different areas and raise the speed and qua-lity of mastery. Teaching with this method affects positively all stud-ents and is more helpful to medium-level and lower performers. Theresearchers hold that the advantage of this method comes fromintegrating concepts with actions, thus raising the consciousness ofteaching and learning.

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