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What is the 1-Step Overhead Projection Calculator?

April 26, 2017calculator overhead projection

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What is the 1-Step Overhead Projection Calculator?

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The overhead projection calculator is a special glass see-through version of the 1-Step designed to be placed on top of an overhead projector and projected onto a screen. The calculator is fully functional and allows your entire class to see and follow the steps you take. This calculator is very fragile and is not intended for use outside of the classroom.