Abstract
The primary purpose was to determine if an advance organizer (AO) could establish a function concept as a subsumer for new concepts. An achievement test was used to identify students who had the subsumer anchored. The secondary purpose was to determine if an established subsumer would facilitate learning, transfer, and retention of concepts on lines and slope. A random half of 36 sections of a remedial college mathematics course studied the AO. All sections took the achievement test. Thirty-five percent of the treatment group and 3% of the control group were identified as having the subsumer anchored. A statistically significant multivariate difference (p <. 001) in performance between students identified as having the subsumer and their control counterparts matched by previous performance in the course was found on the three dependent measures over lines and slope.
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