Research on the emotional foundation of teachers' professional development 并列题名：Research on the emotional foundation of teachers' professional development Research on the mechanism of teacher professional development Research on the contemporary teacher professional development 并列题名：Research on the mechanism of teacher professional development Research on teacher teaching effectiveness based on teachers' professional development Research of the institutional system of the principal's professional development New exploration of teacher's professional development Teacher education and teacher professional development 并列题名：Research on teacher teaching effectiveness based on teachers' professional development