Modification types	Description and examples
Structural	A change to the structure or delivery of the activity Example. Students are not asked to do paired work but instead conduct the activity as a whole class; teacher leaves out the “You do” section
Content–addition	Adding content to an activity or lesson Example. Teacher adds extra words for blending; teacher adds extra questions in comprehension
Content–omission	Omitting content from an activity or lesson Example. Teacher skips a word during blending exercise; teacher omits a new vocabulary word
Partial activity skipped	Skipping a subcomponent or part of an activity Example. The teacher skips the “prediction/pre-reading” step, but does not omit the main content/story
Entire activity skipped	Skipping an entire activity Example. Teacher does not do pre-reading activity, story reading, or comprehension questions with students