The Calculator program that ships with Mac OS X includes a speech feature that can be used to create a talking calculator. When this feature is enabled, Calculator will speak each number as it is pressed, providing additional feedback to students.

To turn on the speech feature of Calculator, choose Speech, Speak Button Pressed.

Mac OS X Calculator's Speech menu options: Speak Button Pressed and Speak Result.

To also hear the results of each calculation, make sure Speech, Speak Result is also selected.

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