Many public schools are struggling to find and retain teachers.
Many public schools are struggling to find and retain teachers. - 
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Students may be back in class, but many public schools are still scrambling to find teachers. Not only are fewer people coming into the profession, lots of teachers are leaving after just a couple years, according to a new report from the Learning Policy Institute. Last year, public schools were short some 60,000 teachers, and if things don't turn around, the shortage could nearly double within a couple years, the report said.    

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