This applet can be used to explore the Connection problem from Investigation #2. ([url]http://investigations1213.blogspot.com/p/investigations.html[/url]) Use the paintbrush tool to transfer color from one node to another.
This applet can be used to explore a problem about the geometry of connection, or topology. Try to color the network so that [list] [*]the edge between the red and green corners is colored using only red and green, and so forth for the other two edges. [*]the coloring contains no small triangle that has corners of all three colors. [/list]