Saturday, April 23, 2011

Using a Globe to Practice Probability



I use a beach ball globe to practice probability during our map unit. We sit in a circle and toss the beach ball to each other. The "catcher" reports whether their right thumb landed on water or land when they caught the ball. Then I use tally marks on the board to keep track of where our thumbs land the most. Before we begin we made predictions of which would win - land or water. Since we had previously made paper plate Earths that showed 3/4 water and 1/4 land they all guessed that water would win. The kids loved this game, and asked to play it for several days in a row afterward!



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