David Brown, from the California Deaf-Blind Services, has written an excellent article on proprioception. It is informative and well written. The focus of the article is on children who are deaf and blind but the information is suitable for any child with sensory processing disorder. There are some great examples of how to explain proprioception deficits (i.e. leg falling asleep and actions you take to wake it up). The article explains the proprioceptive sense, what happens when it is not working properly and what can be done to help. You can download the article below or here.