a) Press ON The calculator cursor should be in the Home Screen (see the black cursor flashing in the bottom left hand corner). Saying 'Hello' to your graphics calculator Instructions TI-89 You will use the following keys. Instead learn to see the TI-89 as a problem-solving, and investigative tool that will help you to understand concepts by providing different ways of looking at problems, thus helping you reflect on the underlying mathematics. Research by the authors, and others, shows that those who do this tend to come to rely on the calculator to the detriment of their mathematical understanding. While much of the information provided here describes how to carry out many mathematical procedures on the TI-89, using technology is not simply about finding answers, and we would encourage you NOT to see this calculator as primarily a quick way to get answers. Some of the information found there in terms of key presses, menus, etc. 1 Introduction to Using the TI-89 Calculator Note: If this is the first time that you have used the TI-89 computer algebra system (CAS) calculator then you should first work through the Introduction to Using the TI-89.
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