Title: English language proficiency and spatial visualization in middle school students' construction of the concepts of reflection and rotation using The Geometer's Sketchpad
Description: <a href="http://uf.catalog.fcla.edu/uf.jsp?st=UF021867867&ix=pm&I=0&V=D&pm=1" rel="nofollow">http://uf.catalog.fcla.edu/uf.jsp?st=UF021867867&ix=pm&I=0&V=D&pm=1</a>