Final answer:
Feedback calling a paper 'very unclear' without specific guidance is unhelpful. Constructive feedback should specify issues like lack of credible evidence, poor transitions, and ineffective structure.
Step-by-step explanation:
Feedback on written work should be constructive and aimed at helping the writer improve. Being told that your paper is 'very unclear' and does not 'properly support your claims' is considered unhelpful because it lacks specificity and does not guide the writer on how to make improvements.
For feedback to be effective, it should identify specific issues, such as whether the topic or claim is not supported with credible evidence, instances where the writer's ideas are unclear and disconnected due to insufficient or inappropriate transitions, a missing clear conclusion, or the ineffective use of media and visual aids.
Furthermore, constructive feedback would clarify if the structure of the paper does not sufficiently demonstrate the writer's awareness of the rhetorical situation or fails to identify and refute realistic counterclaims.