Somewhere out there, there's a young girl in grade school who finds she has a burning interest in building things. Maybe she finds herself more drawn to math, science experiments and mechanical devices than dolls. She wonders how things work, and how they could work better. Amy Parlett and Carolyn Boos want to say some things to that youngster, and to the thousands of grade school-age girls like her - the girls who find that they are drawn to the so-called "boy interests" of engineering, science and technology: