There are many good ways to “see” the relationship among the different sets of real numbers, but most are pictorial. Few visual representations take into account the spatial or kinesthetic learner. For those who need something to touch and move around, this hands-on model of real numbers works well as it gives the students something to see as well as to manipulate.
This eight page handout contains complete and easy directions on how to construct the model using six file folders. When placed inside each other, the model shows the relationship between real numbers, rational and irrational numbers, integers, whole numbers and natural or counting numbers. Once made, it becomes an invaluable tool for those students who are spatial or kinesthetic. I trust you will find it an effective as well as a useful tool in your classroom as well.
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