Teacher Education: How Teacher Educators Can Use Manipulative Materials with Preservice Teachers

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  • 1 Louisiana State University, Baton Rouge, LA 70803

Not long ago I wa ob erving Martha Peterson, a preservice teacher from my methods course, as she was teaching the subtraction algorithm to some third grader. Martha was using base-ten blocks to show how the physical exchange of a “long” for ten “unit,” in relation to a written step in the algorithm, when Johnny exclaimed, “so that' why you cross out the tens!” As we left the classroom, Martha was elated and said. “Did you hear Johnny? The base-ten block really helped him understand. l didn't think manipulative material would really work but now I do”

The Arithmetic Teacher


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