A beginner study-card description

Use the supplied widget types to describe a study card. Separate the verified sandbox output from your sketch of future interactive behavior.

Compose a Column using Text and Button children.
Predict and check child counts for one, two, and three children.
Preview an individual Text and Button and explain their descriptions.
Choose understandable text and record feedback from a reader.
List intended interactions separately and explain why the current Button does not implement a callback.