Associated Topics || Dr. Math Home || Search Dr. Math

Judging Fahrenheit and Celsius Temperatures

```Date: 03/31/2004 at 22:56:22
From: Kenya
Subject: I just don't get anything about TEMPERATURE

Dear Doctor Math,

Temperature is so confusing!  I'm doing temperature in class but I
don't get it.  I have a hard time judging if a temperature would be
hot or cold.  For example, here's a question from our math text book:

You decide to wear a jacket outside.  What is the temperature most
likely to be?

A: 23C        B: 54F        C: 98F        D: 98C

I would choose D, but a lot of times I get it wrong.  I am not just in
fourth grade, But in 4th APPAS, a special class for smart kids.  I'm
afraid of being dropped down to the lowest section in my grade.

```

```
Date: 04/01/2004 at 08:37:49
From: Doctor Peterson
Subject: Re: I just don't get anything about TEMPERATURE

Hi, Kenya.

It's a little confusing that they include both Fahrenheit and Celsius
temperatures in the problem; it's better to learn one system at a
time.  But you can look at each answer separately and think about
whether it makes sense.

You need to have some knowledge of typical temperatures, so you can
compare.  For example, in Fahrenheit

0 = very cold winter weather
32 = water freezes
68 = comfortable room temperature
100 = hot outdoor weather
212 = water boils

Look at where 54F and 98F fit on this chart, and decide whether you
would want to wear a jacket if you were outside in that temperature.

Now do the same with the Celsius temperatures and this chart:

0 = water freezes
20 = comfortable room temperature
40 = hot outdoor weather
100 = water boils

Can you see which answer makes sense now?  Combining your intelligence
and a little knowledge of facts (which smart people need to learn
just as much as the rest of us), you should do fine.

If you have any further questions, feel free to write back.

- Doctor Peterson, The Math Forum
http://mathforum.org/dr.math/
```
Associated Topics:
Elementary Temperature

Search the Dr. Math Library:

 Find items containing (put spaces between keywords):   Click only once for faster results: [ Choose "whole words" when searching for a word like age.] all keywords, in any order at least one, that exact phrase parts of words whole words

Submit your own question to Dr. Math
Math Forum Home || Math Library || Quick Reference || Math Forum Search

Ask Dr. MathTM
© 1994- The Math Forum at NCTM. All rights reserved.
http://mathforum.org/dr.math/