“…More specifically, research has generated a number of procedures for selecting and sequencing positive and negative examples to facilitate concept learning. These procedures increase efficiency and effectiveness by (a) carefully sampling the full range of positive examples (Carnine, 1980a), (b) including minimally different negative examples in the teaching set (Williams & Carnine, 1981), (c) juxtaposing minimally different positive and negative examples (Granzin & Carnine, 1977), (d) creating minimal differences by transforming stimuli (Carnine, 1981;Gersten, White, Falco, & Carnine, 1982), (e) sequencing examples (Carnine, 1981;Kryzanowski & Carnine, 1980;Carnine, 1976;Carnine, 1980b;Carnine, 1980c), (f) minimizing variability in instructions (Williams & Carnine, 1981). If attention deficits interfere with the benefit that LD students derive from these procedures, specific instructional interventions may be necessary.…”