Using icon-based equations can provide multiple entry points into algebraic thinking and formal algebraic notation.
Tony McCaffrey and Percival G. Matthews
Percival Matthews, Bethany Rittle-Johnson, Katherine McEldoon and Roger Taylor
Knowledge of the equal sign as an indicator of mathematical equality is foundational to children's mathematical development and serves as a key link between arithmetic and algebra. The current findings reaffirmed a past finding that diverse items can be integrated onto a single scale, revealed the wide variability in children's knowledge of the equal sign assessed by different types of items, and provided empirical evidence for a link between equal-sign knowledge and success on some basic algebra items.