Archive for the 'Cells' Category

Investigating Cell Size

How big are cells? Ask most middle school students that question, and they’ll tell you that cells are very small - even microscopic! But what if you asked them to compare the size of cells in a whale and a shrew?
That’s the engaging scenario laid out in “Whale and Shrew,” a formative assessment probe from […]

Posted in Topics: Cells, Life Sciences, Quick Takes, Ratio, Science, Science as Inquiry

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