Kim Krawczyk, a math teacher in South Florida who teaches at Marjory Stoneman Douglas High School — the shoot that experienced the tragic school shooting that killed 17 people in February 2018 — tells Retreat Behavioral Health how teachers are feeling about heading back to the classroom, either virtually or in-person, during the coronavirus pandemic. This is our latest episode of "Head Space," where we examine the mental health challenges that students and teachers are facing during this tumultuous period.