"The unfortunate thing is we've invested on average about 430 to 440 hours of professional development around our model, " McClellan says.

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The fallacy of our thinking is that employment in established corporations is the model for income stability and dependable professional development.

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The One Laptop Per Child initiative in particular gathered significant publicity and hype for its admirable goals, but people implementing it in many countries appeared not to have thought through the professional development teachers would need or, even more importantly, a redesign of the schooling model itself to leverage the considerable benefits that digital learning can deliver.

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