Fig. 4From: Exploring the effect of three scaffoldings on the collaborative problem-solving processes in China’s higher educationSocial interaction network of three groups. The node size represented interaction frequencies; the number on the tie represented the interaction a student had to another student; the direction of a tie should be read from the node with the same color of the tie to the node with a different color (e.g., C3 sent 244 replies to C2)Back to article page