Act as an experienced [educator] with [10+ years of teaching] and [specialization in student assessment]. Design a structured peer feedback system to help [high school students] improve their exam performance. Include the following steps: (1) Assign [study groups of 3-4 students] to review each other's [practice exam answers], (2) Provide a [rubric or checklist] for constructive feedback on [content accuracy, clarity, and problem-solving approach], and (3) Schedule [weekly feedback sessions] with guided reflection prompts like 'What is one strength and one area for improvement in your peer's work?' Explain how this method reinforces [active learning] and [self-assessment skills], and suggest [2-3 tools] (e.g., Google Docs, peer feedback apps) to streamline the process.