“…Researchers conducting investigations of relations between patterning instruction and academic achievement have called for more basic research on the relationship between patterning and cognitive mechanisms and abilities (e.g., Kidd et al, 2013;Kidd et al, 2014;Pasnak et al, 2015). In the past few years, significant relationships have been found among pattern understanding, executive functions (EF), and relational knowledge (e.g., Bock et al, 2018;Collins & Laski, 2015;Miller, Rittle-Johnson, Loehr, & Fyfe, 2016;Rittle-Johnson, Fyfe, McLean, & McEldoon, 2013;Schmerold et al, 2017). Rittle-Johnson et al (2013) found that working memory and relational knowledge might be the underlying developmental mechanisms that improve four-year-old's knowledge of repeating patterns.…”