“…A useful definition of the method comes from Huber and Hader-Popp: "The word method is understood to mean a clearly defined, conceptually perceivable and independent, if also integrated, component of teaching." (Huber, & Hader-Popp, 2007, p. 3) For mathematics education, a number of good standard reference work is available which addresses the application of instructional methods (Zech, 1998;Heddens, Speer, & Brahier, 2008;Kidwell, & Ackerberg-Hastings, 2008;Barzel, et al, 2011;Reiss & Hammer;2014;Cruickshank, et al, 2011;Li, et al, 2014;Ufer, et al, 2015;Djidu & Jailani, 2017;Jailani et al, 2018). Hattie (2009, chapters 9 and 10) provides information on the effectiveness of instructional methods.…”