Problems with numerical illiteracy

  • Thread starter Thread starter torquerotates
  • Start date Start date
  • Tags Tags
    Numerical
Click For Summary

Discussion Overview

The discussion revolves around the perceived importance of numerical skills, particularly mental arithmetic, in upper division mathematics courses such as linear algebra and probability. Participants share their experiences and perspectives on how arithmetic abilities relate to success in more abstract mathematical concepts.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Meta-discussion

Main Points Raised

  • One participant expresses concern about their mental arithmetic skills, noting that while they excel in abstract reasoning and have performed well in lower division math, they struggle with basic calculations.
  • Another participant reassures that calculators are available for arithmetic tasks and emphasizes that understanding calculus is more important than quick mental calculations.
  • Several participants agree that success in upper level math relies more on abstract thinking and conceptual understanding than on the ability to perform mental arithmetic quickly.
  • A participant shares an anecdote about a math professor making an arithmetic error during a lecture, highlighting that even experienced mathematicians can struggle with basic calculations, which does not diminish their expertise in abstract mathematics.
  • One participant notes the social pressure they feel as a math major to perform arithmetic correctly, despite the emphasis on conceptual understanding in advanced courses.
  • A later post humorously points out an odd formatting issue with a quote, inviting conjecture about the capitalization change, which adds a light-hearted element to the discussion.

Areas of Agreement / Disagreement

Participants generally agree that mental arithmetic is not a critical measure of success in upper division math courses, emphasizing the importance of abstract thinking instead. However, there is a recognition of social perceptions and pressures related to being a math major, indicating a nuanced disagreement about the value placed on arithmetic skills.

Contextual Notes

Some participants express that while they value abstract thinking, they still encounter situations where arithmetic skills are expected, leading to a tension between perceived abilities and actual performance in arithmetic tasks.

torquerotates
Messages
207
Reaction score
0
How good do I have to be with numbers in upper division math( esp. linear algebra and probability)? I have pretty good spatial skills, logic and algebra( I can solve differential equations quickly with little error). I got mostly A's in lower division math and, if it counts for anything, physics courses. Yet when it comes to basic stuff like multiplying numbers mentally and correctly keeping track of decimal places in basic operations, I'm sunk. I mean, it's not that I can do the math(though some of it isn't awfully intuitive), its just that I'm not quick like most math/science majors. My little brother can do arithmetic faster than me and he got a D in Calc. =(.
 
Physics news on Phys.org
No, dude, get that stuff out of your head. That's what calculators are for. As sad as it sounds, there are more important things than arithmetic.

Every now and then when we do a numerical problem in one of my physics classes (I'll be a senior now), it comes to multiplying something non-trivial and the class gets a collective brain-fart and it takes us like 5 minutes to do any adding or multiplying, even the professor gets stuck.

Don't worry about it. Calculus is more important than arithmetic.
 
Agreed with WarPhalange. How quickly you can do mental arithmetic does not measure how you'll do in upper level math courses.

You need to know how to think abstractly, grasp concepts, and be creative, not multiply 323.43*45.7 in your head.
 
Don't worry--even some of the math professors can get those wrong during lectures. I remember a few times in number theory when my professor said 56 is 7 mod 2, implying that if you divide 56 by 7, you get a remainder of 2. It took a few seconds for a class to realize the fallacy in his statement, and it was actually funny because somebody who can do algebraic topology can still get the multiplication table wrong.

But as I've said, it was actually "funny", and nobody thought it was ridiculous or crazy (e.g. "OMG, he can't do multiplication and he's our professor!"). The upper division math classes stresses on understanding abstract concepts rather than being able to compute arithmetic quickly. People won't look down on you for not getting correct arithmetic, except for some misguided people who THINK math is all about arithmetic (but we all have to deal with these people in different way).
 
PieceOfPi said:
... People won't look down on you for not getting correct arithmetic, except for some misguided people who THINK math is all about arithmetic (but we all have to deal with these people in different way).

That's the worst part of telling people I'm a math major. I'm the first one asked when big number arithmetic needs to be done.
 
alligatorman said:
you Need To Know How To Think Abstractly, Grasp Concepts, And Be Creative, Not Multiply 323.43*45.7 In Your Head.

14780.751

edit: that's weird. For an exercise in being creative, anyone want to conjecture why that quote altered the capitalization at the beginning of each word?
 

Similar threads

  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 17 ·
Replies
17
Views
2K
  • · Replies 9 ·
Replies
9
Views
3K
  • · Replies 21 ·
Replies
21
Views
148K
  • · Replies 8 ·
Replies
8
Views
7K
  • · Replies 19 ·
Replies
19
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 11 ·
Replies
11
Views
3K
  • · Replies 6 ·
Replies
6
Views
2K