Read the emailed threat that closed LAUSD schools on Tuesday LA Daily News: The emailed threat to the Los Angeles school district that resulted in an unprecedented closure of all campuses included specific references to “bombs hidden in lockers,” “nerve gas agents” and “Kalashnikov rifles.”

Threats sent to schools in South Florida, Houston AP: School officials in Miami, Fort Lauderdale and Houston say they're beefing up security on campuses after receiving threats similar to the ones received by the Los Angeles and New York school districts earlier this week….

Los Angeles Schools Reopen With Many Parents on Edge NYT: Even though the threat from the previous day had been deemed a hoax, many parents were wary of sending their children back to class.

Investors Rebel Against Controversial Online School Operator K12 BuzzFeed: Investors weren’t the only ones voicing discontent Wednesday: outside the shareholder meeting in Washington D.C. a throng of protestors from national teachers’ unions, along with representatives from a school operated by K12, marched and chanted. Protestors accused one of the company’s largest school networks, the California Virtual Academies, of failing its 15,000 students.

Leaving ‘No Child’ behind: New law heartens educators AP:  School leaders and teachers who have argued that test scores alone shouldn't make or break a school are hopeful the new federal education law will offer a truer picture of success….

Success Academy Schools, in Shortening Their Day, Shed a Distinction NYT: Eva S. Moskowitz, the head of the charter network, said the move to reduce class time was made because improved teaching and training had enabled students to achieve mastery faster.

Maintaining Order So Students Can Learn WNYC: There’s a word you hear a lot at M.S. 22 in Morrisania: RORS. It’s a cute slogan, because the school’s mascot is the tiger. But it’s also an acronym for a code of conduct: Respectful, Organized, Responsible and Safe.

High Schools Listening to Scientists, Letting Teens Sleep AP: The movement still has a long way to go: There are more than 24,000 U.S. high schools. Supporters expect that such decisions will be made more quickly now that people have mostly stopped debating the underlying science.

Schools Are Incredibly Segregated, But Teaching Kids In Two Languages Could Help HuffPost: A walk through Heritage Elementary School in Woodburn, Oregon, can make you feel like you’re touring Europe. In one classroom, a group of third-graders learn to read in Spanish. In another, students recite multiplication tables in Russian. In other parts of the school, students are receiving instruction in English. 

Bid to Spike Federal Teacher-Preparation Regs Fails TeacherBeat: Overall, all this gives the Education Department the green light to release its regs. They are supposed to drop this month, although the department hasn’t given many hints about when. 

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Alexander Russo is a freelance education writer who has created several long-running blogs such as the national news site This Week In Education, District 299 (about Chicago schools), and LA School Report. He can be reached on Twitter at @alexanderrusso, on Facebook, or directly at alexanderrusso@gmail.com.