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Table 8 Summary of reported teacher emphasis when teaching evolution, by reported previous coursework and professional development (column percentages)

From: Teaching evolution in U.S. public schools: a continuing challenge

 NoneOneTwoThree or more
Number of college courses with evolution focus
 Evolution as settled science75.070.575.668.3
 Mixed messages14.310.811.311.4
 Avoidance15.78.314.713.0
 Creationism as valid8.25.93.60.0
 Total100100100100
 N30219110860
Number of college courses with some evolution
 Evolution as settled science62.255.067.379.4
 Mixed messages13.316.315.97.8
 Avoidance16.117.813.89.1
 Creationism as valid8.510.93.03.8
 Total100100100100
 N122144144250
Professional development courses with evolution focus
 Evolution as settled science65.178.077.177.2
 Mixed messages14.112.512.46.2
 Avoidance14.26.110.513.2
 Creationism as valid6.63.30.03.4
 Total100100100100
 N390795232