Adult ESL practitioners operate in a context in which full-time positi
ons are rare, resources are scarce, and turnover- is high. But efforts
to professionalize the field should not be taken as an indictment of
the professionalism of the adult ESL workforce. Even under adverse cur
rent working conditions, professionalism in the field is high, as is d
emonstrated by participation in ongoing professional development and t
he range of professional development models in use. Whereas both certi
fication and credentialing have been proposed as ways of enhancing the
professionalization of the field, credentialing may be more appropria
te because it can provide for multiple routes of access to the profess
ion. The article discusses three major models of adult ESL literacy pr
ofessional development: craft or mentoring models, applied science or
theory to practice models, and inquiry or reflective practice models.
The article concludes by outlining each model, describing examples of
each in adult ESL literacy and suggesting ways in which they can be ef
fectively combined, looking to innovative teacher development practice
s in K-12 education as a guide.