Tuesday, August 31, 2010
Math Workbox: Estimation
Today, I begin with cards on Estimation, using Bruce Goldstone's awesome books, Great Estimations and Greater Estimations. (Please see my book reviews and read an email from the author.)
I made 3 task cards that I will rotate through a Math Box along with Goldstone's books. In one activity, for example, the Math Box will include a baggie of 1/2 cup of popcorn. My student will count out 10 kernels, then 100 kernels, and use that information to estimate the total number of kernels, modeled after the visuals in Goldstone's books. Another task card includes a link to the author's website where students may estimate using the "Estimatron."
The cards are available in pdf format as a free download. Grab your own and print them on cardstock. Please enjoy the activity and leave me a comment to let me know what you think!
P.S. I'm sorry the tea towel (right) is wrinkled. I don't take time to iron. I take time to create math activities! ;)
I invite you to link to a Workbox post on math. Please link to posts that emphasize Living Books, games, and hands-on activities as opposed to worksheets and drills.