What are the element of professional development system?

emotions management.leadership (how to work within a group).presentation skills.

listening skills (how to listen effectively).

There are several elements of professional development is the most important practice - training by a colleague at work this element helps the employee to take advantage of training and faster and bigger advantage. 

Program+teacher+facilitator+material

1.        The professional development program;

2.        The teachers, who are the learners in the system;

3.        The facilitator, who guides teachers as they construct new knowledge and practices; and

4.       The context in which the professional development occurs.

Trainers & respondents along with course materials. For further consultancy, like my page & ask questions:

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i don't know

All answers professors adequate and sufficient