1, holiness: qualitative researchers study from a holistic perspective. They don't reduce the location, people or groups of research to variables, but treat all the people and things on the spot as a whole. Using this viewpoint, the researcher uses the method of collecting data from all aspects to find all the research angles and the context of the data, and depicts the whole picture of the educational phenomenon.
2. Depth: Qualitative research focuses on the in-depth understanding and excavation of the research object, so as to achieve in-depth analysis of the research problems.