It is the moment in the summer holidays children dread: when the “Back to School” banners go up in local stores and parents start to tick off the list of classroom supplies for the new term. This year, Walmart, the US retailer, is trying to ease the pain with a dose of innovation. Its online Classrooms by Walmart site goes beyond a generic list of products all children need, and allows teachers to upload tailored requirements for individual classes. Some 60,000 supply lists are already online.
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