张 思， 邓 露， 邓 伟， 夏 丹， 上超望
【关 键 词 】：
网络研修社区； 对话反思； 认知网络分析； 教师工作坊； TPACK
The data of dialogue and reflection in the network training community contains teachers' rich, objective and collaborative cognition of TPACK. Based on the TPACK framework, the data of teachers' dialogue and reflection in network training community are structured and encoded, and Epistemic Network Analysis (ENA) is applied to explore the cognitive framework model of teachers, so as to obtain the most natural evaluation of the characteristics of teachers' TPACK. The study collects the data of teachers' dialogue in network training community "Faculty Workshop for Working Together ", and then those data are coded according to the TPACK framework so as to explore the distribution tendency of teachers' cognitive behaviors. Furthermore, the ENA is used to explore the structural characteristics of teachers' cognitive network in high and low groups, different age groups, post and reply groups. It is found that the knowledge types of teacher dialogue are mainly subject pedagogical knowledge and general pedagogical knowledge. Teachers in higher-score group have higher connection coefficients of PK-PCK, PK-TPACK and CK-PCK , and their TPACK are more flexible, while teachers in lower-score group pay more attention to the integration of technical knowledge and content-specific pedagogical knowledge. Teachers in lower-age group have higher connection coefficients of PK-PCK and PCK-TPACK, while connection coefficients of PK-TPACK、CK-PCK、TPK-PCK of teachers in higher-age group are higher. The connection coefficient of each element in the cognitive network of teachers in the reply group is higher. ENA provides a new paradigm for learning analytics and evaluation supported by big data.