Final answer:
The basic principles of effective summary in 'They Say/I Say' involve going beyond describing, explaining, and restating texts and offering a more complex analysis.
Step-by-step explanation:
The basic principles of effective summary in They Say/I Say involve going beyond describing, explaining, and restating texts and offering a more complex analysis. A summary should distill the key points of the reading selection and avoid inappropriate summary. It is important to identify the subject, author, purpose, and audience of the source, as well as key facts, ideas, opinions, dates, and perspectives.