This mentor's guide is designed to support teachers in enhancing higher-order thinking skills in English/reading for grades 7 to 10, through collaborative learning and mentoring. It includes a series of structured activities based on the SOLO taxonomy and aims to improve instructional strategies by promoting meaningful teacher interactions and reflections. The guide serves as a comprehensive resource for master teachers and school leaders to effectively coach and mentor their colleagues, while emphasizing the importance of applying the Philippine Professional Standards for Teachers.