Transform linkages
Move the blue point around. How is it related to the green point? How does moving the sliders and maroon points affect the behavior of each linkage?
Linkage #1
Linkage #2
Linkage #3
Linkage #4
Linkage #5
Thanks to Barcelona Math Museum https://twitter.com/mmaca_cat for the idea behind Linkage #4 and to Diego Lieban (https://www.geogebra.org/diegolieban) for Linkage #1.