Geoboard

Geoboard is a tool that lets learners stretch virtual rubberbands around pegs to form line segments and polygons. Creating these shapes help learners make discoveries about perimeter, area, angles, congruence, fractions, and more.

Geoboard is a virtual version of the rubberbands and peg/nail board we all grew up with. Learners can fill individual shapes with color and display grid lines with or without numbering to more easily calculate area and identify shape locations. 

Check out their great tutorials (https://bit.ly/3FYCFXl).

Geoboard is available as a web app (https://bit.ly/3KGUfTq), for iOS (https://apple.co/3tWZuZ8), or for Chrome (https://bit.ly/343icDE).