Let's be frank, many of us have been struggling with wrapping our brains around the "new" way of learning math with the Common Core standards. One of the biggest hurdles thus far as been the "make a ten" strategy for mental math. Many of us already use this strategy while calculating numbers fluently in our heads, though perhaps not explicitly or consciously. However, I'm finding this year that my attempts at explaining it to children--actually putting it "out there" and making it explicit for them--have been met with furrowed brows and quizzical looks.
Here are a couple videos that I though explain the make a ten strategy really well. Hope they help demystify a bit of Common Core Math!
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Fairburn celebrated College Awareness Month with some fun activities, including a door decorating contest. I admit, Room 17 took liberties with the meaning of "door," opting to decorate one entire facade of our bungalow. Many thanks to our head room mom, Sabra, for getting the pompoms from Party City! I got the cute and clever idea of using students' "selfies" from a first grade teacher on Pinterest.
One of my favorite projects for the past few years has been this fun exploration of arrays with common everyday objects. We first spend several days in class looking at lots of pictures of arrays, arranging rows and columns of colorful tiles into arrays, drawing them on graph paper, and observing them in the real world. Then I provide this project sheet and encourage the children to run with wherever their creativity takes them. A word to the wise, however: although using edible items can be cute and clever, beware of crumbs and stickiness! Suggested items include stickers, small erasers, pasta, buttons, paper clips, wiggly eyes--and the possibilities are endless, really. Heavier objects would probably need hot glue. Here are a few examples, which include one I made myself, plus some by students from previous years:
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