sentences:  Public Education Coordinator Richard Barthelemy, known as Bart, realized that young and old visitors alike wanted to get their hands on all the specimens that are traditionally behind glass in museums.Bart started by sitting down with groups and passing around bones and furs and feathers and such and talking with them about what was there.He teamed with Dr. Roger Johnson from the University of Minnesota's Department of Curriculum and Instruction in the College of Education to figure out how to make the experience work at its best.