In explaining this decision, Peterson (1987) recalled the IB framers’ distaste for “the backwash effect” (p. 50). In American parlance, educators would term such a phenomenon, “teaching to the test.” To the IB’s architects, thinking mattered more than knowing. For instance, Peterson identified five intellectual qualities that students in the IB should learn to cultivate. Although he did include “memory” on his list, the other four qualities spoke to thinking skills: “a capacity for conceptualization and analysis,” “an unslaked curiosity,” “a capacity for recognizing and . . . formulating new interpretations of available information,” and “a commitment to the intellectual formulation and solution of problems” (Peterson, 1972, p. 34). To assess students’ thinking skills, the IB exams allow opportunities for students to write, to explain, and to illustrate their problem-solving strategies” (Conner, pg. 329-330)