A comprehensive 5-page expansion for Lesson 37. It focuses on the prefix sub- and root sid/sit, with the vocabulary word 'subside', alongside explicit instruction in the diphthongs ew and ue review. It includes a foundational page, a reading passage without underlines to encourage active word searching, a new dedicated encoding mastery page, comprehension questions with discussion frames, and structured writing practice. Designed for high school TESOL students.