Libby Nelson, Vox.com news editor and former education reporter, joins Matt and Sarah to talk about the discipline practices and educational outcomes at so-called "no excuses" charter schools. Then they turn to a white paper that looks at lead poisoning and fertility. References and further reading: Illinois Public Radio story on Noble Academy Video of teacher at Success Academy ripping up student's homework Research mentioned by Libby on outcomes at the Harlem Children's Zone Upper West Side parents mad about school integration plan White paper on lead poisoning and fertility Learn more about your ad choices. Visit podcastchoices.com/adchoices