a drawing of a circle on a white board

Prompt 1: a person drawing on a piece of paper while writing numbers on it. they then proceed to draw a circle and several other circles inside it. the person then proceeds to draw a triangle on the same piece of paper. seems to be a simple demonstration of drawing and measuring tools used in the field of mathematics. overall, is a brief tutorial on basic mathematical concepts.

Prompt 2: a person drawing a circle on a piece of paper and then proceeding to draw a line that intersects the circle. the person then draws another line that intersects the first line and the circle. then shows the person drawing a third line that intersects the first two lines. ends with the person drawing a fourth line that intersects the first three lines.