“…Accurately placing whole numbers and fractions on a physical number line is a commonly used measure of students’ understanding of numerical magnitude (e.g., Clarke et al., 2020; Hansen, 2015; Hawes et al., 2019; Hornung et al., 2014; Luwel et al., 2019; Morsanyi et al., 2020; Peeters et al., 2015), and performance on such measures is consistently related to overall mathematics achievement and various specific mathematics outcomes, both concurrently and longitudinally (Booth & Siegler, 2006; Clarke et al., 2020; Geary et al., 2008; Hansen et al., 2017; Liu et al., 2022; Scofield et al., 2021; Zhu et al., 2017). An earlier meta‐analysis estimated the relation between number line performance and overall mathematical ability was r = 0.44, and the strength of the association was similar across different mathematics domains (Schneider et al., 2018).…”