"The Importance of Clarifying Language in Mathematics Education" ScienceDaily 3-22-11
Many math concepts are counter-intuitive (measurement units, place value, the number zero, fractions, negative numbers), which makes them challenging. Presenting them abstractly (as in merely demonstrating an algorithm) makes them even harder to understand. The challenge for teachers is finding clear language, a variety of metaphors, and a variety of concrete contexts.
Or this can happen: "Many consumers believe 36 months is longer than 3 years."
Another connection in this precious post.
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