General Grading
Policies
- A total of 10
experiments will be carried out. Each experiment
counts equally toward your overall lab grade in the
course.
- Your prompt attendance
at the laboratories is required. If you have a
legitimate excuse then it is your responsibility to
contact the instructor prior to the lab in order to
work out arrangements to make up the lab. An unexcused
absence will result in a grade of zero for the
experiment. Three zero grades will result in an
automatic failure for the course.
- The grade in the
laboratory counts 25% toward your overall grade for
the course.
- A passing grade must be
obtained in the laboratory in order to pass the
course.
Grading of Experiments
Each experiment is graded
on the basis of 100 points. The grade for the experiment
is the composite of the five separate items below.
- Lab Report - 50
pts. Lab reports in this course will
generally take the form of report sheets that you and
your team will work together to complete. They will be
graded primarily on the degree to which they
demonstrate a good understanding of the experiment.
The correctness of the answers to the questions, the
correctness of the calculations, and your
interpretations of the data and observations as shown
in the results summary tables are all critical to
obtaining a good grade on the lab report. The
neatness, completeness, spelling, and grammar usage of
your answers will also be factored into the grade for
the report. Lab reports are due one week after
completion of each experiment. Late lab reports
will be penalized.
- Data/Observations
Sheet - 10 pts. Each lab handout includes
a data/observations sheet to be filled out when
actually carrying out the experiment during the lab
period. Make sure you give units where required and
obey significant figure rules when recording data.
Also record all observations completely and in detail.
Omission of a key observation or piece of data will
lead to deductions to your score on this part of the
lab. Get the instructor or TA to initial your D/O
sheet before leaving the lab each week.
- Quality of Lab Work
- 10 pts. You may be penalized for poor
results, incomplete results, failure to follow
directions, excessive glassware breakage, failure to
follow safety rules, or poor housekeeping.
- Pre-Lab Assignment -
10 pts. It is important that all students come
to lab fully prepared to do the required experiment.
Each lab handout includes a pre-lab assignment of 2-5
questions.
- Post-Lab Quiz - 20
pts. A lab quiz on each experiment will be
given shortly after the reports for that lab have been
turned in for grading.
Lab Teams
- You will work in
instructor-assigned teams of four for the labs in this
course.
- You may want to
delegate assignments both during the actual laboratory
periods as well as outside of lab when writing
reports. However, just as it would not be permissible
for only one team member to carry out all of the
experimental procedures during the lab, it is equally
not permissible for only one team member to be
involved in the preparation of the lab report. It is
expected that all team members work together on the
report for each experiment.
- To ensure fairness of
lab grading, all lab teams will be switched around
after experiments #3 and #7. In other words you will
work with three different teams throughout the
semester.
Team Contribution
Surveys
- When turning in the
lab report for each experiment each team member must
also submit a team contribution survey (TCS).
- A TCS for each
experiment will be made available electronically on
the course D2L site after completion of each
experiment. You will receive an email inviting you to
take the survey.
- The TCS ask you to
rate yourself and your teammates on your participation
both in carrying out the experiment during the lab and
in writing up the report post-lab.
- You will be penalized 5
points for every rating of 3 or less in any of the
individual phases of the experiment. In other words,
if you don't help with a lab report and at least one
of your teammates is honest about it and rates you a 3
or less on the prelab, then you lose 5 points.
(Ratings of 1 or 2 will cost even more points). Same
thing goes for the in-lab work, the report, and the
meetings participation.
- TCS penalties will be
applied at the end of the semester, not as we go
along. In other words, you will not find out about any
penalties that were assessed until the end of the
semester. I am doing this so that people can feel more
free about rating the other people on their team
honestly, without fear of any kind of reprisal.
- If you do rank one of
your teammates at 3 or less for any of the phases of
an experiment, then you should follow up with an email
to the instructor that explains your rationale for
doing so. This should ensure that poor ratings are not
arbitrary, malicious or without good reasons to back
them up.
- Not submitting a TCS
for any experiment incurs a five point penalty.
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