| Towards the digital era,the construction of a wide range of digital educational resources and their application platforms has provided technical support for everyone to learn from everywhere at all times.Multi resource development,multi scenario display,and multi form communication have changed the original classroom teaching methods and deeply promoted the Digital transformation of education.However,in the junior high school informatics contest curriculum,the massive digital resources are distributed in fragmentation,the existing digital resources are single in form and content,and the resources are not systematic,which affect the teaching and learning of the contest classroom.Therefore,conducting a systematic construction of digital resources for junior high school information science competitions and conducting research on digital resource classroom applications using the OJ platform can help improve the current situation of information science competition courses,enhance the quality of competition teaching,promote the high-level development of students’ competition learning,and provide certain reference experience for resource construction and teaching applications in the context of digital education reform.This study conducted research on the construction and application of digital resources in junior high school information science competitions based on the OJ platform through various methods such as literature research,interview surveys,questionnaire surveys,design research,and under the guidance of cognitive theory of multimedia learning,cognitive load theory,constructivism,and other theories.The main tasks were as follows:Firstly,based on research questions,the research purpose and significance of the construction and application of junior high school information science competition resources were explored,the research content was clarified,and research methods and ideas were proposed.By sorting out relevant concepts and theoretical foundations,the current situation of digital resource construction in information science competitions at home and abroad was analyzed.Furthermore,the principles of digital resource construction and application were proposed,and a model for digital resource construction and application was constructed,And analyze and explain the relevant content of the model.Secondly,based on the principles and theoretical models of digital resource construction and application,research is conducted on the design and construction of digital resources in junior high school information science competitions.Course demand analysis is conducted from the perspectives of teaching content,learner characteristics,and teaching status.Based on the demand analysis,knowledge structures are reorganized and divided,digital resource construction templates are designed,and an OJ platform for designing the application carrier of digital resources is built.Propose key points for digital resource construction in junior high school information science competitions,explore ways to build digital resources,and gradually carry out digital resource construction in chapters.Finally,combined with demand analysis and resource construction,the application research of digital resources in junior high school information science competitions is conducted,exploring a teaching mode suitable for the application of digital resources in junior high school information science competitions-hybrid teaching.The teaching practice is carried out using the section "Application of one-dimensional arrays: sorting" in the C++grammar stage as a case study,Analyze the application effect of digital resources based on the results of a comprehensive questionnaire survey,student process learning data,and outcome learning data.The research on the construction and application of digital resources in junior high school informatics competitions based on the OJ platform found that it is very necessary to carry out systematic construction and application of digital resources in junior high school informatics competitions.On the one hand,it can solve the problems of fragmentation,"information silo",good and bad,and other aspects of competition resources,and promote the sustainable and long-term development of informatics competitions;On the other hand,applying digital resources from information science competitions in classroom teaching to carry out exploratory learning activities can effectively meet students’ diverse learning needs,enhance their competitive learning abilities,and promote their comprehensive development.At the same time,the construction of a rich digital resource database helps to reduce the workload of teachers in resource collection and screening when preparing lessons.The continuous practice and optimization of digital resources in the teaching process has also constantly improved teachers’ information literacy and teaching level. |
