Previous studies on AI tutors are mostly conducted in higher education settings. This study evaluates the impact of AI tutors on high-school students’ learning and engagement, using a custom-designed AI tutoring tool, which incorporates features like step-by-step guidance, real-time feedback, and constant encouragement, while avoiding direct answers. High school students will interact with the AI tool for 15-minute to 1 hour and complete pre- and post-surveys. Their interactions with the AI tutor, as well as their knowledge and interest gain will be collected and analyzed. Results will inform educators on potential AI guardrails to ensure educational efficacy. #AI Tutor #High School Education #Practical Guidance on Design Features for AI Educational Tools