Designing instructional model based on cognitive load theory based on qualitative content analysis and internal and external validity

The aim of this study was to develop and validate the cognitive load theory was based learning model. Given this overall goal, detailed objectives of research, design an educational model based on cognitive load theory, Internal validation of the learning model based on cognitive load theory, External validation of cognitive load theory -based learning model through its effect on student learning. The population of all the articles that through google search engine and database ebsco, wiley and sciencedirect were downloaded. In this study, purposive sampling method is used. The sample consisted of 25 articles and 4 books. Content Analysis unit in this research was the theme. According to content analysis on the text of 25 articles and 4 books on cognitive load theory, Three-story cognitive load internal , external load and load were optimum. As a result of analysis on the conclusions obtained in three floors , the components of the model were obtained. Finally , as a result of the content analysis performed on articles and books and syntheses and components derived from them , were presented as templates. The results of the internal and external validity of this study has shown that the educational model based on cognitive load theory , the effectiveness necessary to teach students.