Units of Study for Reading, Units os Study for Writing, and Shared Curricular Calendars seems to be hot topics of thought and discussion among teachers.
Here are a couple links to sites I had found this spring when I was looking for resources.
Calkins Graduate Students reading units of study
Denver City Schools curriculum site-they aren’t really “TC”, but a modified version with a strong ELL component/support (Scroll to the bottom-they are by grade level and unit).
Heinemann writing supports for units of study