Also a Girl Scout troop leader, Purcell said the Girls Scouts of America has also progressed in encouraging girls to not just sell cookies but to explore science and technology.
"To this day, boys are pushed in the science and math fields. There's an unintentional bias. I don't think anyone is doing it on purpose," she said.
Girls, she says, need to be made aware of what is available to them.
"There are different ways to do that: after-school activities, math camps, trips to science museums -- anything that could spark their interest," she said.
Purcell is thrilled that her 13-year-old daughter, who has had her share of math campus and Girl Scouts, enjoys math. At present, she is interested in teaching, Purcell said.
"I'm hoping I'm a good role model for her. If she wants to be a teacher, that's fabulous. Our educators are fabulous. I just want her to be aware of what's out there," she said.