Texas Instrument´s answer to the IPOD generation. Every Inspire comes with an interchangeable faceplate that allows it to perform EXACTLY like a TI-84, so for only $5-10 more, you get all the benefits of the TI-84 AND the Inspire. If you teach math beyond Algebra, you should check this out. They are very versatile, support numerous applications, and help to open up even more possibilities in the classroom. Be sure to research the difference between the CAS and non-CAS options (The non-CAS systems are allowed for the SAT/ACT, but the TI-Inspires with CAS capabilities are NOT allowed.)