“…Subsequently, there are some studies that also work with the category of functional thinking and whose objective is to determine the appropriate type of instruction, specifically in working with patterns, so that students in the first grades of schooling manage to move from recursive thinking or recursive relations to covariational or correspondence relations (Blanton et al, 2011;Blanton et al, 2015;Cañadas & Fuentes, 2015;Cañadas et. al., 2016;Morales et al, 2018;Pinto et al, 2016;Stephens et al, 2012;Stephens et al, 2017;Syawahid et al, 2020). For works such as those of Torres et al, (2019;, the interest is to identify the nature of the functional structure that early grade school students can establish when working with linear and affine functions to model the solution of the proposed tasks.…”