Kathy Heydt & Monica Allon 
Perkins Activity and Resource Guide Chapter 3: Motor Development: Gross and Fine Motor Skills [EPUB ebook] 

This chapter will include explanations and helpful activities in the areas that play an important role in motor development. The typical development of motor skills follows a natural, progressive pattern. However, interference with part of the system, be it visual, auditory, motor, etc. will cause delays in motor development. In general, children totally blind since birth exhibit the greatest delays in motor development.