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Research picture courtesy of The University of Warwick, Institute of Education http://www2.warwick.ac.uk/fac/soc/wie/teaching/frm2/, 02/11/2009.
Picture of clip board courtesy of http://www.nmact.org/images/ClipBoard_updated.jpg, 02/11/2009.
Picture of clip board courtesy of http://www.nmact.org/images/ClipBoard_updated.jpg, 02/11/2009.