The purpose of this study was to evaluate the effects of the copy, cover, and compare (CCC) procedure on improving the mathematics and spelling performance of a freshman attending a high school special education class. The participant was a 16-year-old high school student enrolled in special education classes for 3 periods of the school day. Math problems consisted of single-and double-digit division and fractions. Spelling words used were at the 3rd-grade level. A multiple baseline design was used to evaluate the effectiveness of CCC. The results suggest that the CCC procedure can be used to improve accuracy in mathematics and spelling. The authors discuss the benefits of employing the CCC procedure for secondary students. (Contains 2 tables and 2 figures.)