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Bill McCallum on twitter liked an article in defense of “number sentences” (among other things).
Stephen Colbert Thinks “Number Sentences” Are Silly. They’re Not.Not sure if the twitter link at the bottom will work or not.
Here is what “Front Matter for Progressions for the Common Core State Standards in Mathematics” states:
Reconceptualized topics; changed notation and
terminology
This section mentions some topics, terms, and notation that have
been frequent in U.S. school mathematics, but do not occur in the
Standards or Progressions.
“Number sentence” in elementary grades “Equation” is used instead
of “number sentence,” allowing the same term to be used
throughout K–12.The topic has already appeared on this forum.
What is the current thinking about “number sentences” in the context of CC?
<p>Great article by @JSEllenberg about #CommonCore (and Stephen Colbert) @IsupportCCSS http://t.co/zv6IJNFc89 via @slate</p>— Bill McCallum (@wgmccallum) June 12, 2014
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In a document like the Progressions you want to use the same word throughout to emphasize the unity of mathematical concepts across grade levels. Ellenberg’s article served a different purpose; it explained why the term “number sentence” made sense mathematically, and might help students understand what an equation is. Personally I don’t have a strong opinion here; my main interest is in discussions about meanings. So I’m happy either way as long as the meaning is made clear.
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