We had an extra fun counting collection today as we worked with Digi-Blocks! Digi-Block is a base-ten model that students build by themselves using specially-designed boxes (“holders”) to assemble single blocks into blocks-of-10; then they assemble these blocks-of-10 to make blocks-of-100, and they assemble block-of-100 to make blocks-of-1000. The key to PLACE-VALUE is to think of “ten” in two different ways – as one thing and as ten things. With Digi-Block, this potentially confusing duality becomes physically obvious: a block-of-ten looks like one thing, but when it’s open, it looks like ten things! Each table counted a large group of ones, and then over a succession of groupings, we counted exactly 600 blocks as a class!
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Mrs. BarkerMrs. Barker is a grade three teacher at Millgrove School. She loves science and reading, and lives in a little brick house with Mr. Barker and her kids Jack and Ellie. Archive
April 2024
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