Where are the complex points on a graph?

The complex numbers allow you to find the x-intercepts of graphs that don’t appear to meet the x-axis, such as y=x²+1. This means the graphs we know have all these …

Tuning into Periodic Functions

This hands-on workshop explores how combining graphing technology with pendulums can deepen understanding of periodic wave behavior. Participants will use the TI graphing calculator with a sensor to investigate sinusoidal …

It’s hip to be [a] square!

Squares are a pretty cool shape! Two investigations into squares, a puzzle and a visual pattern to explore offer a smorgasbord to challenge your thinking. Suitable for any student who …