Frank Tworek, Ph.D., is a retired biology teacher in the Omaha Public Schools. He spent 43 years teaching--and learning from--countless adolescent students. His life and beliefs ha...voir plusFrank Tworek, Ph.D., is a retired biology teacher in the Omaha Public Schools. He spent 43 years teaching--and learning from--countless adolescent students. His life and beliefs have been further shaped by his relationships with his wife, their three children and spouses, and seven grandkids. His leisure time activities include fishing, gardening and woodworking.voir moins