The Center for Excellence in Developmental Disabilities offers many FREE online training materials that offer educational resources on developmental disabilities. There are many video to watch and learn from including topics on

Strategies for Teaching Functional Skills (Parent guide)
Assistive Tech for Individuals with Neurodevelopmental Disabilities
Neurodevelopmental Approach for Babies
Visual Processing Deficits in Fragile X and Autism
And many more...

All are free to watch and some are even in Spanish. Take a look here.