A calculator is used to find the solution or calculate complex equation in a small amount of time opposite to using the human mind which may take quite some time. An example is Trigonometry .When we use a calculator we must be aware that the answer is logic and near estimation.
An introduction to the use of calculators is to give the students the hands on experience and the confidence of operating a calculator. A lesson on addition, subtraction, multiplication and division should be conducted.
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