From Education Week: In many schools in the United States, students struggling the most in mathematics at the start of high school have the worst odds of getting a qualified teacher in the subject, new research finds. Succeeding in freshman-level mathematics is critical for students to stay on track to high school graduation, with students who make poor grades in math in 8th and 9th grades more likely to leave school entirely. Yet two new studies presented at the Association for Education Finance and Policy meeting last month suggest that students who enter high school performing below average in math have a lower chance of getting a teacher who is well-qualified to teach math than do higher-achieving students. The problem, the research concludes, exacerbates gaps in teacher access between schools with different performance and wealth levels.