Why are you all answering the question that you want to answer, rather than the question that was asked?
tetjam, from your inability to focus on the facts, you are evidently not legally experienced, so why are you answering a legal question?
The question did not involve schools. Or roundabouts. Or crossings. It involved acceleration. If you add your own additional elements, you are changing the question, so you can hardly call tommy an "idiot".
So, the answer is that acceleration, per se, cannot be reckless.
If you want to add additional elements, then here's one. Even if I floor it in my MGF, as long as I have the roof down, I have no blind spots. Assuming I am not near tetjam's imiginary "school", I am clearly being more careful that drivers with hard roofs, and door pillars.
Also, if my hair blows around in the wind, I look a damn sight more stylish than most of them.