Fiona Edwards is 50 years old, but to this day, some of her most traumatic memories are from her elementary school classroom in the Caribbean. As a child with an overactive imagination who struggled to stay organized and to wait her turn, Edwards had a hard time learning as her classmates did. And her principal didn’t waste any opportunity to remind her — and everyone else – that she was “an unteachable dunce,” said Edwards, who now lives in Baltimore.