Students learning Arabic at Central Junior High in Bedford have three teachers – the two in their classroom and another one 5,000 miles away. In Morocco. Once a month, the class calls him up on Skype.

As a child, Mohammed Ait Amghar, a shopkeeper from the Azilal region in Morocco, could only speak his native language, Amazigh. In 1982, when he was 8 years old, he felt unwell in class, his teacher ...