The Construction and Validation of Online Project-based Learning Teaching Model: –Taking a middle school IT course as an example

In recent years, with the continuous development of modern information technology, online teaching has become more and more widespread in various schools around the world. In the current online learning environment, students are mostly in independent learning mode, and this online teaching mode is of great significance to carry out online learning in an organized manner, complete learning tasks, and improve the efficiency of online learning. However, there is a lack of emotional communication, cooperative communication, and thinking collision between students and teachers, which is not conducive to the development of students' ability of collaboration and innovation and leads to poor learning effect. Project-based learning is an important way to cultivate students and core competencies in the 21st century. In the process of project-based learning, students' collaborative skills, innovative thinking and critical thinking can be developed to make up for the shortcomings of online teaching mode. Therefore, this study combines junior high school IT curriculum, under the guidance of constructivism, multiple intelligences and other theories, and uses research methods such as survey research and experimental research to construct and verify the online project-based learning teaching model in junior high school IT curriculum in order to enhance students' collaboration, innovation and other abilities, and thus enhance the learning effect.