The diagram shows a quadrant chart with a large square and axes intersecting at the center. The top label above the square reads “Intentional” with an arrow pointing up. The bottom label reads “Serendipitous” with an arrow pointing down. The left label reads “External world” with an arrow pointing left, and the right label reads “Internal world” with an arrow pointing right. Inside the square, there is a large circle labeled “Experimenting” at the center. A horizontal oval labeled “Observation” extends from left to right near the top, near the three-fourths length of the vertical axis. A circle labeled “Self-created” overlaps the upper right part of the horizontal oval in the top right quadrant, and a circle labeled “Self” is positioned in the lower right quadrant, overlapping with the central circle.Sources of ideation on a Quadrant. Source(s): Figure by authors