At the eye level of a child, the world is a different place. Thelma Pinkston, a 34-year preschool veteran, loves to occasionally catch a glimpse of life through a child’s rose-colored glasses.     “You have to lose your cares and worries when you are with them. They’re contagious,” Pinkston remarked.     Pinkston, along with the teachers, aides and support staff…