According to the article Providing Credit for Teacher Online PD Efforts from Education Week, one of the challenges with online professional development is verifying that teachers are learning.

Atomic Learning solutions are job-embedded, often with immediate impact to the classroom. Each solution offered in our product suite provides artifacts of learning, be it the professional development workbook and certificates of completion offered with many Atomic Learning solutions, or the feedback provided by the facilitators of Atomic Catalyst’s instructor-led online courses.