The answer will be to lower the bar of expectations. Presto, everyone in public schools are meeting standards.
Definition: Equitable math instruction is the simple understanding that students and communities come from different backgrounds and may have different ways of being and thinking, even in math. from equitablemath.org
That is exactly what they are doing. Have family members in public education. They are livid. All time, effort and resources are being geared to the bottom 1/4.