Objective: To explore the eye-movement characters and the visual cognitive processing traits of Chinese children with reading disorder (RD) during apperceiving pictures.

The congenital advantage of the language makes the language become people s main exchange way,the need of keeping a record of events hastens the birth of the picture.

This article introduces a new thought method how to irritate student interest, to optimize drawing invention with computer, and to make multilayer prolongation after class to form drawing likes in teaching drawing class in "Information Technology

Previous undirected graph drawing algorithms draw large cycles with no chords as concave polygons.

Proposed a new planar graph drawing algorithm which is based on genetic algorithm.

The algorithm transforms the problem of planar graph drawing to that of constraint optimization, and constructs a function with constraints according to the aesthetic criteria of graph drawing problem, and then uses genetic algorithms to find approximate optimal solutions to the objective function, and thus obtains a planar orthogonal straight-line drawing of the planar graph.

The witer prokes into the fearibility of these methods through training students ability of doing things by themselves,asking students questions,using visual pictures,feeding back in time.