“…Despite the progress achieved over the last few decades in the evaluation process of teachers (eg Sparks and Loucks-Horsley, 1989;Wolansky, 2001;Desselle et al, 2004;Avalos and Assael, 2006;Murias et al, 2008;Uzoka, 2008;Ramli et al, 2010;Stoklasa et al, 2011), several authors consider that teaching practices cannot be fully measured given the subjective nature of the appraisal and lack of available indicators. In this sense, Bana e Costa and Oliveira (2012, p 425) defend that '[…] there has been little research on how to integrate objective and subjective approaches adequately […] "most of the evaluation methodologies used […] suffer major flaws in both substance and process" […]' (see also Keeney et al, 2006;Elmore, 2008).…”