The Nspire is like the TI 84 on steroids a bit. As an overview, Nspire has more features, in that you create documents, which contain one of 5 types of “pages”. The pages all are “connected”, in that variables or lists created on one type of page is automatically available and updated on all other pages! The Nspire could be justified as classroom calculator for ALL high school classes, and, indeed starting in the 7th grade (advanced mathematics) classroom. Come discover how It could/should replace the TI- 84 in the near future, essentially because of the “connectivity” features and “natural way” or “user friendly” ways it has to display the mathematics.