About the Partnership: Model has been developed and refined over a period of 24 years through five projects funded by the Offices of Special Education Program and English Language Acquisition (OSEP and OELA) of the US Department of Education and the Colorado Department of Education. CO-TOP, a Training of Trainers (TOT) model enhances the capacity of Local Educational Agencies (LEAs) to prepare licensed professionals (teachers and related service providers to supervise and train paraprofessionals through the use of research based training materials (modules and manuals) and resources developed by The PAR2A Center