In response to the mental isolation from the activity associated with the object to accomplish the goal, is the isolation of learning content. In traditional types of education, content means a lot of material to be learned. Many different disciplines include so many independent branches, each branch having its own complete set of guidelines. Face mask grinch 6 feet people. History belongs to a group of subjects about events; algebra belongs to another group; geography belongs to another group, and so on until we finish the whole curriculum.