Table 1 . Interview protocol.^a .

Questions
To explore broad experience with nutrition and nutrition education:
How would you describe your current role in nutrition education?
How does this compare to the role you think you should play?
Tell me how you feel about teaching students about nutrition as part of the school curriculum?
Probes: Comfort, confidence, enjoyment, appropriateness
How do you view the subject of nutrition compared to other subjects you  teach (such as math, English, etc.)?
How influential do you believe YOU, specifically, are in changing students' nutrition knowledge?
Confidence?
Behavior?
Probe: In what ways?
Tell me about anything you may do nutrition- or physical activity–related in  your classroom outside of GHK?b
What motivates you to provide this extra education?b
To explore and generate more detail about specific experiences:
Tell me about your experiences teaching the GHK curriculum.
What is different about GHK compared to other nutrition curriculum or materials you may have used?
Tell me about what went well with the GHK curriculum.
Tell me about what barriers you faced in completing the GHK curriculum.
Tell me about the influences you think GHK has had on students' nutrition  knowledge.
Behavior?
Confidence?
Probes:
Tell me more about that …
Can you give me an example?
I want to understand what you mean, can you tell me again?
Why do you think that is?

^a GHK indicates Growing Healthy Kids.

^b This question was added during the interview process in response to developing themes; all teachers addressed this topic.