The written report is a summary of the professional development activities that you attended with funds from the CPDF. Not every PD recipient must submit a report. See the following excerpt from the CUPEU Collective Agreement (Article 10.13c):

"An eligible employee who benefits from the support of the CUPEU Fund shall make a written report providing details on the activities undertaken, to the Committee and their immediate supervisor/unit head, within sixty (60) days of the completion of the activities. Such a report is not required for allocations related to the purchase of publications, software, or membership in professional associations/organizations. Failure to provide such a written report will jeopardize the member's right to receive professional development funds in the future."