CAS Functionality

The past couple weeks, while in quarantine, our class has been exploring the Computer Algebra System (CAS) functionality of the TI-Nspire CAS CX and Geogebra.  While Geogebra is a program we have been using throughout the semester, the TI-Nspire CAS CX is a device I had no previous experience with before we started this unit.  That said, I learned a lot exploring this new tool.  The TI-Nspire has functionalities similar to a TI-83, but also has a menu where the user can input graphs, geometric sketches, tables, charts, and notes all into one file and transfer it over to a desktop.  These features would be perfect for a high school geometry class.  For example, students could create an equilateral triangle using two overlapping circles with a share radius as one of the triangles sides.  They could then explain what they constructed and why they know for certain they have created an equilateral triangle in the notes section of the TI-Nspire.  The only limitation of using the TI-Nspire CAS CX would probably only be accessibility.  It would be hard for a class of 20+ kids to each have one and be able to access a computer to share their results.  A possible solution for this could be just having a class set where groups of 2-4 students would have to share a device, or just have one TI-Nspire and have your students teach the class by taking turns throughout the semester using the calculator.  The strategy you employ would depend on the school district you teach in, but regardless of the level of district funding, students should have the opportunity to use technology in the classroom.