The recent growth of online education has been astounding. Last year, 35 million people signed up for at least one online college-level class. That’s more than double the previous year’s enrollment.
The popularity of online learning is easy to understand. Today, students have access to well over 4,000 courses in a wide array of subjects, from chemistry to philosophy to graphic design. They participate at a time and place that suits their schedule. Many courses are free.
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