I've started a presentation on grading, which anyone with the link can edit and add their perspective. The presentation is split into four areas:
Please feel free to add your perspective to this summary of the debate on grading, ideally citing evidence for any strong claims that you make if possible.
Remember that there are a lot of emotions behind the different perspectives on this issue, so to refrain from personal attacks, etc... My objective is to gather evidence and perspectives, rather than start any flame wars.
David is a Formative Assessment Specialist for Mathematics at New Visions for Public Schools in NYC. He has been teaching since 2002, and has worked in Brooklyn, London, Bangkok, and Vancouver before moving back to the United States. He has his Masters degree in Educational Technology from UBC, and is the co-author of a mathematics textbook. He has been published in ISTE's Leading and Learning, Educational Technology Solutions, The Software Developers Journal, The Bangkok Post and Edutopia. He blogs with the Cooperative Catalyst, and is the Assessment group facilitator for Edutopia. He has also helped organize the first Edcamp in Canada, and TEDxKIDS@BC.