Quality of Feedback with Toddlers is a focus on the degree to which the teacher provides feedback (in response to what children say and/or do) that promotes learning and understanding and expands children’s participation. That can be through scaffolding, providing additional information, and encouraging or affirmation.
Here are few resources that came to mind:
This blog/podcast episode has some great ideas!
Quality of Feedback with non-verbal toddlers
And here's a blog post about Scaffolding that has some specific ways it could look in a classroom.
I'd love to hear what others find helpful!