Final answer:
The mistake in the sentence is the use of the word 'iterate' instead of the correct term 'itinerant', which refers to someone who travels from one place to another, particularly for work. The correct option is a. iterate
Step-by-step explanation:
The error in the sentence 'The iterate teacher moved continually from one school to another within the district.' is with the word iterate. The correct term to use in this context would likely be itinerant, which means traveling from place to place, especially to perform one's duty at work.
An itinerant teacher is one who moves between different schools within a school district, usually to teach a specialized subject that is not available at every school.
The error in the sentence is the word 'iterate', which does not fit correctly in the given context.
The word 'iterate' means to repeat or do something again, and it doesn't make sense in this sentence because a teacher cannot 'iterate' from one school to another. Instead, the word 'itinerant' would be more appropriate to describe a teacher who moves constantly between schools.
The correct option is a. iterate