Original sentence: Many of these explanations were found by professor David Tall, who has studied characteristics of teaching and cognition that lead to some of the conceptions he has encountered in his college students.Nor are more sophisticated methods foolproof: students who are fully capable of applying rigorous definitions may be surprised by a result in advanced mathematics, including 0.999….Some students think of the limit of a sequence as a kind of infinite process rather than a fixed value, since the sequence never reaches its limit.Students of mathematics often reject the equality of 0.999… and 1.There are many common contributing factors to the disagreement:
Edited sentence: (This is a more sophisticated response.Intuition and ambiguous teaching lead students to think of the limit of a sequence as a kind of infinite process rather than a fixed value, since the sequence never reaches its limit.Many of these explanations were found by professor David Tall, who has studied characteristics of teaching and cognition that lead to some of the misunderstandings he has encountered in his college students.Nor are more sophisticated methods foolproof: students who are fully capable of applying rigorous definitions may still fall back on intuitive images when they are surprised by a result in advanced mathematics, including 0.999….Students of mathematics often reject the equality of 0.999… and 1, for reasons ranging from their disparate appearance to deep misgivings over the limit concept and disagreements over the nature of infinitesimals.There are many common contributing factors to the confusion: