A study by the National Council on Teacher Quality argued that "teaching colleges are too lenient in their admissions criteria and have failed to prepare their students to teach subjects like reading, math and science," reported nprEd.

The study found that only 17 percent of programs prepare future educators to teach reading using all five fundamental components of reading instruction. Almost half of elementary programs surveyed fail to ensure that candidates are capable STEM instructors. Three out of four U.S. schools that train teachers don't require applicants to be in the top half of the college-going population.

And the top-performing programs, according to the study, are not the ones you might expect.

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