Skip to main content
Search IntMath

Friday math movie - Limits

By Murray Bourne, 30 Jan 2009

Students always seem to struggle with the concept of limits.

Most introductions to calculus include a section on limits (as they should), but because of the difficulty, students end up having negative reactions about calculus before they get on to the "real" stuff of differentiation and integration. Nevertheless, limits are a very important concept in calculus.

Here are a few movies that introduce what limits are about. They are highly rated on YouTube and hopefully they’ll help you to figure out the concepts.

Introduction to Limits Part 1

This is the first in a series. You'll see links to the rest when the movie finishes.

What is a Limit? Basic Idea of Limits

This guy points out one of the stumbling blocks — the notation for limits can be quite confusing.

Limits at Infinity - Basic Idea and Shortcuts

This one talks about limits "at" infinity. But of course, we can only talk about limits as x approaches infinity.

Anyway, don't sweat about limits and continuity at first. Come back to it after you have been doing differentiation and integration for a while and it will hopefully make more sense. At least by then you will know how limits get used.

See the 4 Comments below.

Leave a comment

Comment Preview

HTML: You can use simple tags like <b>, <a href="...">, etc.

To enter math, you can can either:

  1. Use simple calculator-like input in the following format (surround your math in backticks, or qq on tablet or phone):
    `a^2 = sqrt(b^2 + c^2)`
    (See more on ASCIIMath syntax); or
  2. Use simple LaTeX in the following format. Surround your math with \( and \).
    \( \int g dx = \sqrt{\frac{a}{b}} \)
    (This is standard simple LaTeX.)

NOTE: You can mix both types of math entry in your comment.


Tips, tricks, lessons, and tutoring to help reduce test anxiety and move to the top of the class.