Friedel-Crafts Acylation of Ferrocene - an Inquisitive Lab Demonstration

Описание к видео Friedel-Crafts Acylation of Ferrocene - an Inquisitive Lab Demonstration

An inquisitive lab demonstration of the acylation of ferrocene. The product mixture is analyzed by TLC, the product is purified by column chromatography, and three colored compounds are isolated (acetylferrocene, diacetylferrocene, and unreacted ferrocene). WHY IS THERE NO AUDIO? Click "show more" for an explanation on an instructor might use this video. The video is embedded with over 30 questions to prompt inquiry and discussion. Complete list of questions: https://www.cpp.edu/~lsstarkey/ocheml... See the entire playlist at the @ChemistryConnected channel.

Without audio, instructors can use this video in a number of different ways. A student can watch it and record observations, like they would in a normal lab.  In a typical lab, no one would be explaining the procedure to them as they go along.  Other than using their hands and physically being in the lab, the expectations for completing a pre-lab assignment, keeping a lab notebook and submitting a lab report can be the same as usual.  If desired by the instructor, answers to the embedded questions can be included in the observations, or as a separate report.  Otherwise, they can simply serve as a reminder of the decisions that need to be made throughout out the procedure, and questions of this nature can be included in a separate assessment (e.g., lab final). Another option is to watch this video synchronously with your students, via videoconferencing.  The video can be paused at each question to give time for a poll and a discussion. (As anyone who has used clickers in their lecture knows, the poll results can be very surprising!) This approach enables the sort of one-on-one mentoring an instructor can provide to their research students, or if they had unlimited time (and maybe access to a dozen clones of themselves) in a traditional lab setting. Viewing the video with your students provides an opportunity for students to ask questions and clear up those persistent misconceptions. With this approach, formative feedback is provided, and comprehension/retention can be probed at a later time with some form of assessment. Please use the comments section if you have other ideas!

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