Henderson, Joyce Many, HP Wellborn, and Joy Ward (2006), there are six major deviations of scaffolding; these deviations include “modeling, contingency management, feedback, instructions, questioning, and applying cognitive thinking.” While there are several variations, the teacher can choose which one they would like to instill in their student. If the instructor knows what specific area the student is struggling in, he or she can decide what the most suitable scaffolding method will be and apply it to the student. Early childhood development has been found to be highly dependent on social interaction. It is critical that a child's progress in knowledge is “centered in a social support system that encourages communication and interaction” (Henderson et. al