A Study On The Influence Of Dynamic Presentation Teaching On Cognitive Load And Learning Effectiveness

?The curriculum standards for mathematics in ordinary senior high schools?2017??requires that mathematics teaching should focus on students and strengthen students'ability,but students often encounter difficulties in learning.For example,when teachers use multimedia courseware to teach,some processing or operation in the courseware will bring obstacles to students'learning.In this paper,Trigger-based Animated Instruction is a teaching concept based on cognitive load theory and multimedia learning theory^[1].That is,an object is used as a button to control the dynamic presentation of a series of information,so that the courseware can be presented in a selective,step-by-step and non-sequential manner with the progress of classroom teaching activities under the control of the teacher.The effect brought by this teaching method is worthy of further study.This study takes the chapter on trigonometric function images and properties as the theme of courseware design,and selects students from four parallel classes in a high school in Zhangzhou city as research objects to carry out empirical research.Two of the classes adopted traditional courseware teaching,and the other two classes presented courseware teaching with the help of dynamic excitation.Through the analysis of the test volume data,questionnaire survey and interview results,the following conclusions are drawn:?1?The Trigger-based Animated Instruction has a significant impact on students'learning results,and the higher the students'academic ability,the more significant the effect.Because students with low academic ability have less reserve of knowledge and slow thinking,in the Trigger-based Animated Instruction,when the information presented in the current picture is not clear,the courseware is followed by the subsequent content,which will cause students to have a large cognitive load.?2?The Trigger-based Animated Instruction can effectively reduce the cognitive load of students.Under the teaching environment of The Trigger-based Animated Instruction,the structural design of text information and the dynamic design of images have significant effects on the reduction of cognitive load and learning outcomes of students.?3?There was a significant negative correlation between learning outcomes and cognitive load,that is,the lower the cognitive load,the higher the learning outcomes.Teachers should design courseware suitable for classroom teaching in the Trigger-based Animated way,which can guide students'attention,help them actively seek,select and organize information,reduce learning setbacks and obstacles caused by students'lack of experience and basic ability,reduce cognitive load and improve learning effect^[2].Finally,based on the above research,this paper gives some Suggestions on how to implement Trigger-based Animated Instruction by means of multimedia in practical teaching.