## 4 Results
### Results of Descriptive Analysis  
The experience of teachers using intelligent teaching systems has a great impact on the application effect of precision teaching models. In order to understand the attitudes and usage situations of the teachers in the intervention class towards the intelligent teaching system, this study conducted a survey among 19 teachers in the intervention class. The questionnaire is shown in Table 5; among the 19 teachers, 1 is the grade leader who teaches physics, and the other 18 teachers are relatively evenly distributed across the subjects of mathematics, physics, chemistry, and biology, and 84% of the teachers have never used intelligent classrooms. Five questions were collected about the teachers' satisfaction with the use of the intelligent system, as shown in the following Table 5: \begin{table}
\begin{tabular}{c c c} \hline \hline
**Subject** & **Similar Questions** & **Personalized Exercises** \\  & **Completed Count** & **Completed Count** \\ \hline M & Y = 0.084 \(\times\) X + 24.28 & Y = 0.047 \(\times\) X + 17.85 \\ P & Y = 0.020 \(\times\) X + 131.6 & Y = 0.007 \(\times\) X + 4.82 \\ C & Y = 0.2111 \(\times\) X + 27.84 & Y = 0.0190 \(\times\) X + 35.92 \\ B & Y = 0.024 \(\times\) X + 43.20 & Y = \(-\)0.124 \(\times\) X + 176.2 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Typical student’s self-directed learning data table. \begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Questions** & \multicolumn{4}{c}{**Options and Answers**} \\ \hline Based on your teaching needs, do you think the pre-class study report is helpful for your teaching? & Yes: 15 (78.95\%) & No: 0 (0\%) & Not very helpful: 4 (21.05\%) & \\ Are you satisfied with the types of homework provided by the AI learning system, or do you have any suggestions? & Satisfied: 7 (36.84\%) & Dissatisfied: 0 (0\%) & It is okay: 11 (57.89\%) & Other Suggestions: 1 (5.26\%) \\ Are you satisfied with the difficulty level of the homework provided by the AI learning system, or do you have any suggestions? & Satisfied: 7 (36.84\%) & Dissatisfied: 0 (0\%) & It is okay: 12 (63.16\%) & Other Suggestions: 0 (0\%) \\ Are you satisfied with the homework grading provided by the AI learning system, or do you have any suggestions? & Satisfied: 9 (47.37\%) & Dissatisfied: 0 (0\%) & It is okay: 10 (52.63\%) & Other Suggestions: 0 (0\%) \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Teacher satisfaction survey results. From the data in the table, it can be seen that 78.95% of the teachers in the intervention group believe that the pre-class guidance function in the intelligent teaching system is very helpful to their teaching, while 21.05% believe it is not very helpful, which shows that most teachers believe that this function is helpful to their teaching. The intelligent homework function is a function that teachers often access and use. The other four questions include satisfaction surveys on the types of homework, the difficulty of homework, the grading of homework, and the source of errors in the class; from the data in the table, the dissatisfaction rate of teachers is zero, and the satisfaction rate (which includes the satisfied and acceptable options) is relatively high. Through the analysis of the functions, usage time, frequency, and environment of the teachers, as below in Figure 8(A1), it was found that the seven mainstream functions in the system were all tried by the 19 teachers, with the top four usage percentages being: homework report: 94.74%, cloud grading: 73.68%, physical screen projection: 68.42%, resource playback: 52.63%, the same as the interactive questions. According to these data, teachers often use intelligent system functions to assist teaching in the precision teaching model's pre-class and in-class segments, and the proportion of teachers who record classroom videos for post-class reflection is relatively small.