A professor lends worms to students, takes them to sewage processing plants and encourages them to answer their own questions about garbage. Sometimes, they even make a career out of it.
The union representing bus drivers and other support staff for the Los Angeles Unified School District begin a three-day strike. The teachers union plans to walk out in support.
NPR's Ailsa Chang speaks with Alberto Carvalho, superintendent of the Los Angeles Unified School District, after union workers began a three-day strike.
Across the country, parties are consolidating political power in states and squeezing out the moderate middle. In Montana, that squeeze is changing political representation and whose voice counts.
GOP lawmakers largely back ex-President Trump ahead of his possible arrest. Staff of the Los Angeles Unified School District plan a walkout. Silicon Valley Bank casts a shadow over the Fed meeting.