TIMSS math scores increase five points for each 1% increase in the percent of teachers who are men.

The percent of a country's 12th grade boys who comprehend probability and statistics increases 1% for each 2% increase in the percent of that country's math teachers who are men.

Only half of American 12th grade boys, but more than two thirds in countries with mostly men math teachers, correctly answered a TIMSS probability and statistics question.

There is a direct relationship between responsible voting, the ability to detect political rhetoric, and knowledge of probability and statistics.

The low percent of men math teachers in the US threatens the integrity of the US Constitution, and ultimately undermines national security.

Zero percent of American 12th grade girls correctly solved math and physics problems.

American teachers are hired from the lowest 10 percentile of college graduates.