Table 2: Means and standard deviations (in parentheses) of the pretest, quality of learning strategies, and posttest scores in the two phases of the study.

Classroom B Classroom A   First phase: Prompts + solved example problems Second phase: Prompts First phase: Prompts Second phase: Prompts + solved example problems Prior knowledge          Pretest  2.63 (0.59) 2.88 (0.55)  Quality of learning strategies           Cognitive strategies 3.12 (0.55) 2.57 (0.49) 2.76 (0.61) 2.52 (0.50)   Metacognitive strategies 2.06 (0.98) 1.85 (0.66) 1.35 (0.47) 1.60 (0.70) Learning outcomes           Procedural knowledge 2.76 (0.67) 2.88 (0.62) 2.92 (0.54) 3.15 (0.62)   Conceptual knowledge 2.98 (0.60) 3.02 (0.42) 2.87 (0.53) 2.77 (0.50)