Presque Isle (Maine) High School has offered a section of all-girls algebra for seven years. The intent was to narrow the gap between 11th-grade boys' and girls' math achievement scores and create a more comfortable learning atmosphere for girls. The achievement score gap has decreased from 72 to 16 points. (MLH)

Once a week, several classrooms of Philadelphia 4th-grade girls participate in Sisters in Science, an afterschool, intergenerational program sponsored by Temple University that provides hand-on activities exploring urban environmental issues. A two-week summer camp program helps these students explore the rivers of Philadelphia. Participants…