An introduction to basic trigonometry ratios and the relationships of the sides of a triangle using TI-Nspire technology. This program can be used as a basic introduction in Geometry or as a knowledge review in Algebra 2 and Pre-Calculus/Trig.

Review the basic operations of the TI-Nspire handheld with your students. Reminders in moving points (the grabber hand), manual data capture ( "CTRL" key then "." key), and data entry in spreadsheets will be important for the activity's success.

Students will need to save their working document under a separate name so that their work can be collected and reviewed. This is meant to be done by students individually or in groups of two. Monitor the students' progress as they work on the activity and help students when they have difficulties.

Download the students work onto your computer and grade their work.