TY - JOUR T1 - Investigating and Explaining the Teacher Professional Development Model of a Qualitative Study TT - JF - iase-idje JO - iase-idje VL - 4 IS - 4 UR - http://iase-idje.ir/article-1-1067-en.html Y1 - 2021 SP - 215 EP - 229 KW - Professional Growth KW - School Landscape Drawing KW - School-Based Educational Supervision KW - Professional Growth and Development N2 - Purpose: The purpose of this study was to present a model of professional development of teachers with a qualitative approach. Methodology: In this study, in order to identify the teacher professional development model, a qualitative interview was determined. The statistical population of the study in the qualitative part was all experts and experts in educational management and planning with 10 people and in the quantitative part included all teachers and principals working in primary schools in Shiraz. The data collection tool was a researcher-made questionnaire. To collect the data in the second stage, a closed questionnaire with a Likert scale of five was used. Findings: The results showed that the results of semi-structured interviews during several stages of coding and also inspired by the research background, led to the identification of the initial code. In the second step, the identified concepts were categorized into the following categories. These fourteen categories are; 1. Management of learning and teaching 2. Creating a conducive learning environment 3. Assessment and curriculum 4. Outline vision 5. Continuous school improvement 6. Effective communication and collaboration 7. Relationship with society and stakeholders 8. Operations management 9. Resource management 10. Guidance and leadership of individuals and teams 11. Professional ethics 12. Islamic ethical principles and norms 13. Develop your career 14. Finally, the fourteen professional standards of school principals were divided into several key areas or categories: educational leadership, strategic leadership, ethical leadership, management and organizational leadership, communication management, and professional development. Conclusion: The results showed that the results of semi-structured interviews during several stages of coding and also inspired by the research background, led to the identification of the initial code. M3 10.52547/ijes.4.4.215 ER -