Former special education teacher Joanna (Henshaw) Rotberg, 73, overcame her own Lou Gehrig's disease for 16 years by following the advice she always taught her students: focus on what you can do rather than what you can't. Born in England, Rotberg, who died on Saturday, was drawn to special education after moving to the United States. "She was always attracted to the toughest jobs," her husband said. "She loved working with the most difficult children."
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