Why Models Matter We have all seen this happen in our math classes at some time: students learn the basics in our lessons, but then struggle when those concepts are extended in just a small way. Students cheerfully recite their basic addition facts, but have no idea how to solve 7 = ? + 4. And story problems? Yikes. Quantities and operations get buried in language and contexts that bring anxiety and confusion to all involved. Wait... We know from evidence that visual math, and the use of manipulatives, have an important place in learning. Yet many people consider these tools just for very young children. But new brain research tells us that visual mathematics encourages more brain activity t
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