Stockton Unified spent nearly $3 million on school policing from state money targeted for low-income, English learner and foster youth students, the ACLU found in a data analysis.
Standard metrics often don't capture the work of schools serving at-risk students.
A California Teachers Association survey found that 40 percent of teachers had received little or no training in alternatives to suspensions.
Suspension rates are a new indicator of school success.
Entering middle school marks a turning point for students.
A new law bans the use of "Redskins" as a mascot at California high schools, but allows schools to continue to use logos of American Indians and for students to dress up in American Indian costumes.
The final report comes amid suggestions that the administration of Donald Trump will be less aggressive about enforcing civil rights laws in schools and colleges.
The researchers say their findings support efforts to diversify the teaching workforce.
Educators are more focused on how students and teachers interact.
The investigation concluded that the district violated federal education and disability law.
Unwanted sexual comments and jokes are against the law at schools, but enforcement has been minimal.
A disproportionate number of African-American students are suspended or expelled.
School discipline and foster youth practices are targeted in state investigations.
Officials examining Tobinworld and other schools in California.