Abstract
The limit idea is the basic idea of calculus. Almost all concepts in mathematical analysis are inseparable from the limit, but the limit is a concept that is difficult to understand accurately. By assuming that there is a certain point closest to the limit value, this paper provides a reasonable explanation for the infinitesimal paradox and a new answer to the question why the limit value is accurate in teaching. At the same time, this method is applied to the derivative and used to understand a common practical problem in mathematics. The analysis shows that this method is effective for the accurate understanding of limit problems.
Highlights
The limit idea is the basic idea of calculus
By assuming that there is a certain point closest to the limit value, this paper provides a reasonable explanation for the infinitesimal paradox and a new answer to the question why the limit value is accurate in teaching
The analysis shows that this method is effective for the accurate understanding of limit problems
Summary
A Definite Explanation of the Concept of Limit in Teaching. Received: November 7, 2020 Accepted: December 21, 2020 Published: December 24, 2020
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