However, the focus and delivery of such efforts may need to differ in accordance with the discrepancies found between school types. The professional development preferred by private school principals as indicated in this study is specific to science content and pedagogy. This is different to what participating public school principals prefer, which is more general skills instruction toward guided learning and away from direct instruction. They insinuate that training in more student centered strategies should encourage teachers to transfer these skills in every subject area. Public school principals acknowledge that a lack of time is a major barrier to initiating traditional professional development programs.Principals from schools that tend to have more locals as teachers, particularly public schools, stated that teachers were unwilling to attend training after school hours, presumably because of family obligations as consistent with the local culture.