Effectively most high and even middle schools are already split in the sense that students can take more or less math based on interest and skill. At my daughte

Effectively most high and even middle schools are already split in the sense that students can take more or less math based on interest and skill. At my daughters' middle school there were three tracks: low, medium and high. My kids were in medium and high level and the curriculum was different for each. By the time they were in 11 or 12 grade they had maxxed out math (including calculus) and could have taken college math (but chose not to). I think the complaint from the left is that minorities don't end up in the higher math offerings because they are either not offered at certain schools or, for whatever reason, unattractive to those students. That's the problem that needs to be fixed. Whether any public school can do that is questionable.