Rubric

Keep in mind that 50 students have already been assessed using this rubric. Changing it will affect their evaluations.
AP Peer Review Bleach Lab Conclusion
AP Peer Review Bleach Lab Conclusion
Criteria Ratings Pts
Objective
Objective(s) of lab are stated.
threshold: pts
10 pts Full Marks
0 pts No Marks
pts
10 pts
--
Procedure
Procedure is summarized into no more than 5 major steps.
threshold: pts
20 pts Full Marks
0 pts No Marks
pts
20 pts
--
Highlights
New technique/equipment: look for discussion of some of these - buret, titration, indicator, color change, volumetric pipet
New concept/Chemistry: look for discussion of either redox reactions or redox titration
threshold: pts
20 pts Full Marks
0 pts No Marks
pts
20 pts
--
Results
Observations and key data are incorporated and calculations are summarized in words.
threshold: pts
30 pts Full Marks
0 pts No Marks
pts
30 pts
--
Error
One error in a procedural or data collection step is proposed that is consistent with the student's collected data. Specific sequential effects on the calculations (too high? too low?) that lead to the final outcome are described..
threshold: pts
10 pts Full Marks
0 pts No Marks
pts
10 pts
--
Spelling and Grammar
No spelling and grammatical mistakes.
threshold: pts
10 pts Full Marks
0 pts No Marks
pts
10 pts
--