Learners need constructive guidance to improve. Teachers should pinpoint strengths and advise on weaknesses, while providing opportunities to develop skills. They should differentiate instruction for different learners and diagnose readiness. Teachers must give immediate, specific feedback on tasks, correcting errors and setting goals for improvement. Feedback should highlight strengths, give praise and encouragement, seek the learner's perspective respectfully, and focus on moving forward together. Teachers should avoid judgment and criticism, instead asking open questions to generate discussion.