Best product for dynamic mathematics for K-16
Community Review for GeoGebra
My Take
GeoGebra is called Dynamic Mathematics for Everyone. To me it is representative of a Dynamic Mathematics Environment. Students can learn math from K-16.
GeoGebraTube (http://www.geogebratube.org/) is a large data base of ready to use applications with work in any HTML5 browser. It is available in over 50 languages.
Does more than other similar software which cost $$. Free worldwide software and support in GeoGebra Forum https://www.geogebra.org/forum/index.php
How I Use It
I have created a web site for my classes to use at http://web.psjaisd.us/auston.cron/ABCronPortal/. Most of my applets are for Algebra and Trigonometry...
I use the site daily and the GeoGebra program in demo mode, illustrations, student use in place of calculator. Students can type equations as WYSIWYG and get the graph.