Headteacher Richard Bramley said that while Christmas is fun for some, it can be a time of stress for others.
"Christmas is a day celebrating the birth of Jesus and should be a time of good will to all, yet it can be a very stressful, expensive, argumentative and lonely time," he wrote in a blog post on the school's website.
"In her message to students in the assemblies [RE teacher] Mrs Paul asked them to consider the true meaning of Christmas and to write to her by November 30 at scrooge@ladylumleys.net with their reasons why we should still celebrate this time of year and try to persuade her to change her mind," he added.
It's an unconventional approach to celebrations, to say the least, and parents are divided on the issue, with some considering the school has gone too far.
Others have chimed in saying "Jesus would welcome this debate".
Students have until November 30 to submit their arguments.
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