Citation: Jr. Kirby et Dr. Boulter, TRAINING OF SPATIAL ABILITIES THROUGH TRANSFORMATIONAL GEOMETRY, Zeitschrift fur Padagogische Psychologie, 12(2-3), 1998, pp. 146-155
Citation: Dr. Boulter et Jr. Kirby, IDENTIFICATION OF STRATEGIES USED IN SOLVING TRANSFORMATIONAL GEOMETRY PROBLEMS, The Journal of educational research, 87(5), 1994, pp. 298-303