Technological Pedagogical Content Knowledge (TPACK) is a theoretical framework used to assess information teaching. However, its application and popularity in practice is limited due to usability and accuracy issues. This study presents a quantitative model called TPACK-Venn, which is based on the graphical calculation of a Venn diagram determined by survey results. The model was tested through a teaching experiment in which students are invited to create micro-courses. Self-evaluations and objective evaluations were conducted independently. A total of 112 micro-courses and their corresponding subjective self-evaluations, as well as 224 objective evaluations, were collected as the control group. After screening, the remaining 96 scores and TPACK modeling values of micro-courses were standardized. The standardized values have an inter-rater reliability of over 80%. It is important to note that the TPACK-Venn model adjusts the significance of the normal distribution of the survey results. As the normal distribution has widespread applicability in teaching guidance. This study presents a highly efficient and practical model for applying the TPACK theoretical framework.