Katrina Stevens will talk about what's working in tech and education.
The School District has so far declined to comment.
David Osborne spoke at an event sponsored by the Philadelphia Education Fund before an audience of movers and shakers, but few parents and teachers.
Some charters have not filled the seats of students who left, raising concerns that the practice skews achievement data. District-run neighborhood schools must take all area students who apply.
The problem was made worse by deferred maintenance.