20
By Troll_Calculator - / Thursday 16 March 2017 09:40 / Canada - Halifax
Add a comment
You must be logged in to be able to post comments!
Create my account Sign in
Top comments
Comments
Reply
  RpiesSPIES  |  24

These were my thoughts exactly. If the calculator has a series of brownish/black squares at the top of it, expose that to light then turn on. A lot of people seem to miss that solar calculators are a thing.

Reply
  Shadowvoid  |  31

Do people really not know about solar calculators? I knew how they worked in grade school. I'm hoping OP was using a calculator with solar and battery. It doesn't seem to matter at this point

Reply
  tantanpanda  |  25

This sounds really mean, but you have a point. A calculator isn't really necessary in general chemistry or organic since the math can be done by approximations and only require precalculus. If this were analytical chemistry, that would be a different story though.

Reply
  Demon_of_Light  |  25

Some tests are designed to be taken with a calculator. At that point, it's assumed you know how to do the math, so expecting students to calculate everything by hand would be redundant and take time from the material that is actually covered in the course. Sure, you could work most of those equations by hand, but then you'll very likely not have enough time to finish the test.

By  PaulieXP  |  14

And people wonder why education is in the toilet. In my day if you were caught with a calculator at school you would have been thrown out of class and recieved an F on your test.

Reply
  kk21days  |  13

And back in your day, did you have to solve an equation like -log(6.3x10^-4)+log(0.60/1.45) by hand? That's the Henderson-Hasselbach equation and it's used to find the pH and pOH (if you take the answer and subtract from 14) of a solution that has acids and conjugate bases. These kinds of equations are very common on general chem 2 tests.

Reply
  Demon_of_Light  |  25

Once you pass the stages of basic chemistry and physics, it becomes pretty unreasonable to expect hand calculations for every test. The math involved for a single problem, while not necessarily more difficult, may fill up multiple pages and take upwards of 10 minutes to calculate by hand. Assuming you have 1-2 hours for your average exam, do you really want to make students spend ten minutes on a single problem so you can test them on concepts they learned in basic math? I, and most of my professors, would rather give an exam that tests mainly on the material actually covered in the course, and allow students to make use of the resources available to them.

Loading data…