In California, education spending has doubled over the last 40 years. The state’s teachers are the fourth-highest-paid in the country, with an average salary of $67,871, not counting their generous pensions. What do we have to show for it? On the most recent NAEP, California’s fourth-graders ranked 45th in the nation in mathematics; in science, they ranked second to last, topping only Mississippi. Over the same 40-year span, California’s average SAT scores have dropped about 5 percent.