(There are calculators available for classroom use. If you purchase a new calculator, Texas Instruments TI NSpire CX or CX II is the preferred model. No calculators with QWERTY keyboards or with computer-based algebra systems (CAS) will be allowed. Please bring in the page of your new calculator’s packaging that has the rewards points. We use them to get free technology from Texas Instruments. A very limited number of calculators will be available for rental.)