Following the transform on the demands of teaching and learning, how to encourage teachers to professional develop their entire career has become a raising issue. As a major instrument for teacher development, professional learning community (PLC) has been discussed in many countries ( Hord, 1997; DuFour, Dufour, Eaker, & Many, 2006).

    In Japan, traditional implementations focus on not only the supervisor for the novice teachers, but the building of school-based professional learning community. Professor Sato Manabu extended the model to the community based student learning centered developing project, and named as "school as learning community (SLC)".

    SLC was adapted and experienced in the U.S. ( Lewis, Perry, Hurd, & O'Connell, 2006), the Europe countries (Hart, Alston, & Murata, 2011; Lofthouse, McElwee, King, & Lofthouse, 2017), and Asian countries (Saito, Murase, Tsukui, & Yeo, 2015).

    In Taiwan, since 2012 a wave of button up teaching and learning revolution including the SLC has been aroused in public and private schools, aimed on changing the lecture based instruction in the classroom. The SLC was taken into consideration of parts of local government and provided funding for the pilot project during 2012-2015.

    The background of the study is the 2019 national curriculum standard reform in Taiwan recently.The new national curriculum standard implicates into worldwide curriculum reform context, and focus on "competency-based reform" in all levels of education stages.

    There were some literature of SLC discussing about the role of the local education authority (Saito etc. ,2014), but lack of theoretical concern and macro curriculum framework scope. In this article, the researchers argue that the domestic education authority plays a crucial role on the institutional support of the transform of the teacher's practice in the classroom.

    The purposes of the research show as follows. 1. To investigate the role of local government in the SLC. 2. To analysis the relationship among the participants of SLC via collaborative governance framework. 3. To conclude the possible ways for the local government for the sustainability of SLC reform. 4. To make practical suggestions for the units transferring the teacher training projects from abroad.

   The research argues that the practical knowledge based collaborative actions between the government and schools' teachers, principals, and scholars are crucial for SLC sustainability.

    The past cases showed that the coercive way from the local education authority would not lead to satisfied outcome (Saito et al.,2015). However the schools still need the momentum (from government) to put the reform on the way.

    On theory perspective, the collaborative governance model developed by Ansell and Gash (2008) and Emerson, Nabatchi, and Balogh (2012) point out the framework and the effect of interactions among different levels and sectors actors.

     The knowledge sharing, network building, and commitment attaining influence not only the projects ongoing, but the reform later. (Sullivan &Skelcher, 2002; Forrer, Kee, &Boyer, 2014; Larkin, Cierpial, Stack, Morrison, & Griffith, 2008).

    The result shows that to some degree, all the case cities had collaborative governance behavior. However the resource and scope of the jurisdiction affected the implementing of collaborative working.

    Different from the cases in other public policies, sharing understanding of the partners is considered as the most important element in the partnership. Especially the mechanism which is help for the constructing and transfer of the pedagogical content knowledge in the SLC is seen as the key for the continuous grow of the teacher professional learning project and beyond.

    Values identify and opportunity to make own choice during the process is emphasized both by the government staff and teachers.

    Finally, trust and dialogue among the partners shaped the partnership through all the collaborative governance in the cities.

On the demand of method, multiple cases study approach is used to construct the study (Yin, 2002; Stake, 2013). Firstly, the researcher constructed the focus of the topics via surveying the documents of local governments and Teacher Training Register and Record system to capture the diffusion and sustainability of the cities and counties. Three case jurisdictions are selected according to the adoption and sustained promotion of SLC. On the data collecting stage, the curriculum leaders of case cities are invited to participate in the interview focus on collaborative governance process. Each case city has 5-7 interviewees participated into the 30-60 minutes face-to face interviewed by the researcher. There are all 19 participants invited into the research. The records are translated into the transcript to apply for content analysis. For the data analysis, the grounded theory coding method is applied in the research. The transcript is open coding firstly, and aggregated into topics, concepts, and axis.There are 216 codes are identified. The cross analysis of cases and axis is made and counted for the description of the collaborative process in the local level. Finally, the qualitative data is used for replying the research question about the factors affecting the SLC development through hermeneutics' method. Chapters of the key transcript are quoted in the report to explain the result of the research.

The main results show as following: 1. The case cities have the distinctive features of collaborative governance. All three jurisdictions, to some degree, have multiple participants, the relative equity power relationship among members, collaborative behavior and ability, and some types of the SLC network. The local governments play crucial role in the teacher professional learning project establishment of SLC case. However the variance identified by the code counting shows that the preference and degree of the collaborative governance are affected by the scope and resource of a jurisdiction. 2. In different jurisdictions, a common feature of collaborative governance model can be recognized through the relationship of the SLC partners. Firstly, the sharing understanding of the members built on the base of pedagogical content knowledge sharing in the cross schools lesson study process in Taiwan. Secondly, Commit for the formal actions emerged after the formal declare of SLC project. However, different from the former reform, values identity and teacher's autonomous development are emphasis during the process. That's quite differing from common collaborative policy. Finally, the research also mentions that the trust and dialogue among teachers, principals, and administrators in SLC is quite difficult to sustain without a key person to coordinate. Besides, the key role of the resource person from outside ( Saito etc., 2014) is pointed in the research. 3. For the local government, the suggestion for the effective use of limited resource to achieve the goals of teachers' professional learning is provided through the case of SLC. The importance of trust and network building and suspending are emphasized in the research. Finally, as a diffusion model internationally, SLC can provide a case for the cross countries teaching professional learning project development, especially on the demand of the value of learning-centered developing model.

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