Alternative schemes for representing numerical magnitude: A. Barcode magnitude representation (Viscuso et al., 1989; Anderson et al., 1994; McCloskey &
Wiley 2014 ch 9
Charting the Role of Spatial Abilities in Mathematical Development
Charting the Role of Spatial Abilities in Mathematical Development Jo-Anne LeFevre Sheri-Lynn Skwarchuk, Jeffrey Bisanz, Brenda Smith-Chant, Deepthi Kamawar.
Alternative schemes for representing numerical magnitude: