Each student should have a graphing calculator. It can be a useful tool, not just to save time but also to do some calculations and explorations which would not be manageable otherwise. However, you should not become overly dependent on your calculator. There are basic skills in calculus which we believe you should be able to carry out by hand. Therefore some quizzes, tests, or parts of tests may be designated "no calculators allowed."
Any graphing calculator is acceptable for your personal use in study and on homework assignments. However, some fancier calculators contain a "computer algebra system" (CAS) that allows them to perform symbolic manipulations. Calculators containing a CAS (for example, the TI-89, TI-92, HP-48 and HP-49) will not be allowed at quizzes and exams. Therefore it is important to not become dependent on a CAS while studying.
The instructors and TA's will be using the Texas Instruments TI-83 when calculators are needed, and they will be able to help with that model. If you are using a different graphing calculator, you will need to learn to use it on your own.
You should always bring your calculator to your discussion section. Whether calculators are allowed at weekly quizzes may vary from week to week.
If the instructors decide to exclude calculators on a test, or part of a test, you will be informed in advance.