“…Some of them are geometry (Battista, Wheatley, & Talsma, 1989;Ben-Chaim, Lappan, & Houang, 1985;Cooper, 1992), chemistry (Dyche, Mclurg, Stepans, & Veath, 1993;Seddon & Moor, 1986;Small & Morton, 1983;Tuckey & Selvaratnam, 1993), biology (Russell-Gebbett, 1984, 1985, astronomy (Broadfoot, 1993), and engineering graphics (Rodriguez, 1990; Wiley, 1990). A majority of the studies that investigated the role of experience and the effect of instruction on spatial skills indicated that these skills can be improved through learning experiences (Baenninger & Newcombe, 1989;Ben-Chaim, Lappan, & Houang, 1988;Kiser, 1990;Lord, 1985Lord, , 1987Smith & Schroeder, 1981).…”