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The present study was conducted with the aim of identifying and explaining the prerequisites of a dialogical teaching-learning strategy, proportionate‎ to generational characteristics of todaychr('39')s ‎undergraduate students, using the mixed method. The tools used in the qualitative and quantitative sections were semi-structured interview and researcher-made questionnaire, respectively. The analysis of the findings in the qualitative part is based on grounded theory and in the quantitative part is descriptive-survey. The statistical population in the qualitative section was the experts, of which the sample of them continued in a targeted manner‎. The statistical population in the quantitative section, consisted of faculty members and undergraduate ‎students from whom the research sample was selected from them by stratified ‎random method. Based on the findings, 8 important prerequisites were identified. As a result, the academic motivation and scientific growth of todaychr('39')s students, depends on the efforts of teachers in the application of the mentioned Prerequisites.

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The study aim wasto designingand validationthe patternof self-learning packagefor multi-grade classesin secondprimary school&to investigateits internal validity.The method wasa mixed method withsequential exploratory design.In the qualitative part,the qualitativecontent analysis methodwas used,and in the quantitative part,the survey method was used for internal validity.In the qualitative part community wereall multigrade teachers,educational leaders,specialistsand experts and alldocuments and theoreticaland research resourcesof multigrade classes that15persons andrelated resources as samples were choosenusing targeted sampling method.Sample size was determined basedonthe principleof theoretical saturation.Data collection tools were reviewof theoreticaland research foundations and semi-structured interviews.In the quantitative part,for internal validity,the research population includedall multi-grade teachers and instructional design specialists,whom30peoples were selected by available sampling method that the commented about pattern in the first and final stagesof designing.The datacollection toolwas a researcher-made questionnaire.The findingsof the qualitative section showed8main components.Internal validity findings using one-samplet-test showed that the meanof all itemswas higherthan the hypothetical mean of3andthis differencewas significant.Accordingly,the self-learning package patternhas internal validity.