Research On The Interface Design Of Digital Teaching Materials Based On Cognitive Load

Along with the mobile Internet technology and the rapid development of wireless network technology,Internet technology applications in the field of education in recent 10 years is also increasing,plays an indispensable role in education.Under the background of education informationization,the rapid development of modern information technology has a great influence on education,the textbooks of digital form digital textbooks,namely based education informatization has become the core resources and attention hot spot.Digital teaching materials development is the combination of publications and web sites,software development,it is both teaching materials and teaching website,teaching software,the focus is from the design of the teaching material content and function of the gradual transition to the learners experience design.People more and more realized to improve the quality of teaching must be based on the learner's cognitive law to design digital textbooks.Digital textbooks of interface interaction of learners and digital textbooks direct channel,is a critical part of digital teaching material development and design process,will directly affect the practicality and the learner's experience of digital textbooks.And an unreasonable digital textbooks interface design brings to the learners' cognitive load,easily lead to the low learning efficiency and poor experience sexual problems.In order to solve this problem,this paper based on the cognitive load theory,according to the control strategies of cognitive load,the design principle of generalizations can reduce the learners' cognitive load,coupled with other interface design principles,to achieve the purpose of reducing cognitive load interface,direct digital textbook optimization design of the interface.This study combined with digital textbooks interface design of the actual cases,the original design of the interface for subjective(NASA TLX scale),objective(rem physiology experiment),three types of cognitive load measurement task performance evaluation,through the experiment on the original cognitive load measurement evaluation on the interface,find the problems in the design of the interface,to solve these problems and interface design principles and requirements of binding energy to reduce cognitive load,navigation,the layout of the original interface,the login module to the optimization design,the optimized pages also use subjective(NASA TLX scale),objective(rem physiology experiment),three methods of cognitive load measurement task performance evaluation,based on the original and optimized interface of experimental data,completion,at times,such as task completion time,number,the diameter of the pupil of saccadic eye blink frequency)comparative analysis,it is concluded that the learner's cognitive load is reduced,interface optimization design is in line with the learners' cognitive law,whether to optimize the design of the digital teaching material interface scheme is better than that of the original interface,and has higher availability.