I was once a math whiz. In high school, I got a 99 in algebra, a 99 in geometry, and a 99 in trigonometry, and I was on the math team. I scored up there with the boys on the air force test of visual-spatial ability, which is why I got recruiting brochures from the air force for many years to come. Then I got a Mr. Hellman, a teacher who didn’t believe girls could do math. My grades declined, and I never took math again. I actually agreed with Mr. Hellman, but I didn’t think it applied to me. Other girls couldn’t do math. Mr. Hellman thought it applied to me, too, and I succumbed.

