Metacognition Training In "3+X" Science Comprehensive Problem Solving

The theory of metacognition is now being regarded as the ideal means of thinking in foreign countries. It has a great effect in the field of educational psychology in our country. It is verified theoretically and practically that the training model of combining the thinking strategy with metacogntion strategy are more superior. According to the objective of the ? +x science comprehensive problem, that is, the process of establishing model; and the corresponding thinking strategies. concerning each stage. The process is divided into three phases namely: 1)the preparation 2)the assumption 3)the establishment Therefore, the ftaining course is compiled.Students of three classes are arranged to receive respectively ,the metacognitive strategic training ;Thinking strategic training , and then normal training, then metacognitive strategic training with the training card . The result of the experiment indicates that it may help to increase students?ability solving problems of medium degree of difficulty to carry out the strategic training in combination with the knowledge concerning the subject. especially helpful to those medium level students. To carry out metaconition training may also be valuable to increase students?ability of solving complicated problems to both medium level students and excellents students. finally the science comprehensive test proves that only metacognition training can be better transferred. Besides, this research further explores that excellent students need metacognition strategy most; medium level students need both the metacognitive strategy and the thinking strategy; weak students must engage in grasping the rudimentary knowledge.