formal construction
2.Our researches aim at construction method of concept lattices in Formal Concept Analysis (FCA), and the presentation model of knowledge similarity based on formal context kernels.
3.Based on the formal measurement table applying the 2(superscript nd) pre-test on 351 students and conducting the examination of the credibility and validity to construct the credibility and validity of the measurement table, the coefficient of inner consistency of individual element in this table was .673~.892, and the coefficient of re-test after the interval of two weeks was .697~.930, with the performance of physical education learning to prove the discriminate validity and criterion-related validity, and with the element analysis to examine the construction validity, the sum of variable amount which could be interpreted was 59.06%, the outcome showed this table was having good credibility and validity that could provide physical education teachers to realize the learning strategies of university students.

