2011 Exiting Ineffective Teachers Policy
The state should close loopholes that allow teachers who have not met licensure requirements to continue teaching.
Colorado requires that all new teachers pass all required subject-matter tests as a condition of initial licensure.
1 Colorado Code of Regulations 301-37: Rule 2260.5-R-3.05; 2260.5-R-3.01(5)
Colorado recognized the factual accuracy of this analysis.
Research has shown that "the difference in student performance in a single academic year from having a good as opposed to a bad teacher can be more than one full year of standardized achievement." See E. Hanushek, "The Trade-Off between Child Quantity and Quality," The Journal of Political Economy 100 No. 1 (1992): 84-117. Hanushek has also found that highly effective teachers can improve future student earnings by more than $400,000, assuming a class of 20. "The Economic Value of Higher Teacher Quality." National Bureau of Economic Research. Working Paper 16606 (2010).