A set of tools focused on supporting understanding of rational number, ratio, and proportion by creating and interacting with visual models.
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Created for the Visual Access to Mathematics (VAM) professional learning program supported by the National Science Foundation under Grant No. DRL-1503057. For more information about VAM visit https://go.edc.org/vam . Any opinions, findings, and conclusions or recommendations expressed are those of the author and do not necessarily reflect the views of the National Science Foundation.
