By Richard Horgan Los Angeles (Knewz) — How can the growing U.S. public teacher shortage be tempered? According to 88 percent of Americans, better pay is the number one way to mitigate the flow of professionals away from K-12 public teaching posts. But it is by no means the only perceived way to attract and retain teachers and school personnel. Close behind are three categories of incentives — more generous healthcare benefits, more funding and resources for the schools and more generous pension benefits. For a recent National Institute on Retirement Security survey, 1,005 Americans over the a…