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Tony McCaffrey and Percival G. Matthews

Using icon-based equations can provide multiple entry points into algebraic thinking and formal algebraic notation.

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Patricio Herbst, Sandra Crespo, Percival G. Matthews, and Erin K. Lichtenstein

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Percival G. Matthews, Patricio Herbst, Sandra Crespo, and Erin K. Lichtenstein

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Daniel Chazan, Patricio Herbst, Sandra Crespo, Percival G. Matthews, and Erin K. Lichtenstein

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Patricio Herbst, Daniel Chazan, Sandra Crespo, Percival G. Matthews, and Erin K. Lichtenstein