Graphing calculators are dead. Long live graphing calculators. 

With the SAT going all digital and desmos.com and geogebra providing spectacular visuals the days of the graphing calculator seem numbered. 

But I have a bold vision for a calculator that would grow with students needs and teach more than math tricks. 

Just as I've developed a curriculum where students learn about numbers, through to irrationals by making their own wooden ruler this calculator would be a multi-year project. 1/