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<font size="+1">I sent something about this previously but I'm still
getting questions and<br>
I had someone ask questions about the exp 5 rubric concerning the
post-lab <br>
and results points. The post-lab (16 pts) is the grading for
having the <br>
correct calculations (based on your input) and the correct s.f.
If you get <br>
the s.f. wrong it could make your number off by too much and it
will count <br>
it wrong (i.e. it will deduct calculation points). <br>
<br>
The results (30 pts) is grading of precision for part A and
precision and <br>
accuracy for part B (the correct MW). These are graded on a
sliding scale <br>
depending on how good is your precision and the accuracy of the MW
<br>
(compared to the true MW).<br>
<br>
<b>This is done using the numbers calculated by the program based
on the</b><b><br>
</b><b>experimental data you input, so if that's wrong the program
can't get correct</b><b><br>
</b><b>results. This grading is based on the numbers calculated
by the program so</b><b><br>
</b><b>if you made calculation errors you can still get points for
this part based on</b><b><br>
</b><b>what the calculated values should be and not your erroneous
values. </b><br>
<br>
There are other exps for which there is date entry based on your
data. <br>
<br>
I suggest you do all your calculations and enter the numbers on
the report <br>
form, or a copy of it, and double check things. Then go to the
data-entry <br>
site (can be reached via Carmen, the syllabus or my web page) and
pretty <br>
much just copy over your numbers.<br>
<br>
If the data-entry program comes back with points deducted for
incorrect <br>
s.f. correct them on the report form (sheet) for the report. If
your calculations <br>
were wrong according to the program check to make sure you did
them <br>
correctly and correct things for the report sheet. The data-entry
is for grading<br>
purposes. You still need to include the report sheet in your
report and it should<br>
have correct numbers with correct s.f.<br>
<br>
Finally, just in case you don't realize this yet, there's a PDF
form of the rubric<br>
which pretty much lays things out on one form. It's a little bit
easier to see<br>
what you have to do than the Carmen rubric used for grading. This
is the case<br>
for all experiments. <br>
<br>
Dr. Zellmer </font>
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