I just knew that UChicago contacted my English teacher and asked something. (My teacher didn’t mention about that). Is this good signal for my admission? Has anyone experienced this?
Sure you can take it as a positive.
If your teacher didn’t mention anything how do you know UChicago contacted him/her? BTW, not sure you can read much into it other than that someone is looking over your application, and probably that you didn’t get dinged or admitted right away.
All you know- or can know- is they asked a question. Nothing to interpret. It could mean you made it past first cut and are viable (which guarantees nothing.) Or it could be a simple question for the teacher of that class, to clarify how it’s taught or whatever. Hang on another few weeks. Decisions for every area aren’t necessarily made yet and that’s where instutional needs play.