The Ten Dollar Bill is to be updated with a new portrait. In my opinion, it should be a woman who is a role model for men and women.
Sally Ride was the first American woman to go into space. In the last 50 years, women have made great strides in gender equality. Still, the fields of physics and engineering are dominated by males. We don't know why but this issue needs to be addressed.
The notion that "Math is hard" needs to be changed to "Math is fun." I believe Sally Ride can help this change.