How does this learning activity develop this primary skill?

Connectedness is an invisible, abstract concept that can be difficult for 6- to 10-year-olds to understand. This energizing exercise makes connections visual and physically tangible. The children hold a piece of the community’s network in their own hands, figuratively and literally. 

They not only visually see but also physically feel the yarn being pulled when their partner moves, our missing. The exercise visually demonstrates that the class is a network, and if someone is not part of it (or lets the yarn go), it affects everyone, while the children also feel how their shared knowledge is built and how valuable it is to connect and help each other.