Participants share discoveries as they work with three activities on the TI-Nspire handheld.

Activity 1: The_Elimination_Method.tns
Activity 2: What_is_a_Solution.tns
Activity 3: Balanced_System.tns

These three files (along with three others) can be downloaded in a zipped file from http://www.pilotalgebra.com/resource-center/technology-resources/. Once on that page, in the INDIVIDUAL EDUCATORS section look for the table labeled lesson (.zip file) and then select the Systems of Linear Equations link.