Back when Grant Hosford's older daughter was in first grade, she signed up for an extracurricular class, building robots with a programmable Lego toy called Mindstorms. Hosford, a dot-com entrepreneur ...
BEIJING — Liu Shang tilted his head and sighed before tapping a plump finger on his computer’s keyboard. When asked if there was a problem the sixth-grader shrugged, barely looked up from the screen ...
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