Seite - 262 - in Intelligent Environments 2019 - Workshop Proceedings of the 15th International Conference on Intelligent Environments

abnormally long time; or the teacher has to take time to troubleshoot the classroom media system; or the teacher has to interrupt students silently working, which causes difficulty refocusing. The students are distracted by each topic and do not listen to the confusion of the teacher's classroom teaching. In this dimension, on the basis of the coding system of Flanders and Gu, the study refers to the classification code of classroom behaviors proposed by Zhang in 2010 [17], in which classroom behaviors of teachers and students are divided into 16 types, as shown in table 1. The behaviors are further divided into teacher control behaviors (B1 to B8), student control behaviors (B10 to B15), both control behaviors (B9) and uncontrolled behavior (B16). This code separates the teacher behaviors from the students’ behaviors because researchers have different reasons for studying both behaviors, and it also specifically classifies the interaction between teachers and students in a more refined way. 2.2 Teaching Media Dimension Teaching media is the carrier for teachers to transfer knowledge in class. Knowledge is intangible and abstract, thus teachers need to transfer knowledge visually to students through the carrier. This dimension is the key part of the design. Considering the coexistence of multiple media in today's smart classroom, the media dimension is divided into 12 types, as shown in table 2. 2.3 TPACK Dimension It is not technology, but a teachers' use of technology that triggers educational reform. Such use not only involves the skilled operation of emerging technologies, but should also be informed by teachers' complex understanding of the comprehensive application of technology, knowledge and teaching methods. TPACK is not only a kind of new subject teaching knowledge that integrates technology, but also a new operational mode that can integrate information technology into the teaching process of various subjects. In the TPACK dimension, coding system are still divided into core elements (CK, PK, TK) and the composite element (PCK, TCK, TPK, TPACK) dimensions, which are shown in table 3. Teaching media can be divided into four categories: traditional media and intelligent media. According to the actual situation of the class, two composing situations can be formed. Firstly, Composing Media (CM) will be composing into multiple media. For example, if a student is using an iPad to complete practice problems on a website, the media composing into a category consisting of II, IP and ID, namely CM. Another situation is that there is no media use in class, and teachers or students can only use language to communicate. This is classified as Verbal. In the classification of teaching media, the use of media in the smart classroom environment will gradually become the mainstream of teachers' use, while traditional media will not withdraw from the smart classroom due to its convenience, ease of use and other characteristics. M.Wangetal. /ExploringaNewCode forSmartClassroomAnalysis262