“…The proliferation of teacher research, by and about teacher researchers, supports his claim yet also depicts how the field has grown more complicated 461 (Cochran-Smith & Lytle, 1999;Leeman & Wardekker, 2013). For example, teacher-led research has been found to provide opportunities for meaningful professional development (Vrijnsen-de Cortea, den Brok, Kamp, & Bergen, 2013), critical thinking (Hagevik, Aydeniz, & Rowell, 2012), discovery learning (Gray, 2013), collaborative collegial learning (Christie & Menter, 2009), university-school partnerships (Arhar et al, 2013;Thornley et al, 2004), and educational policy development (Rust & Meyers, 2006). Cochran-Smith and Lytle (1999) suggest that because teacher research "is such a generative concept, it can be shaped and reshaped to further virtually any educational agenda" (p. 17).…”