The midpoint activity is designed to allow students to explore geometrical concepts. The activity may be played by two or three users. Each user manipulates a colored endpoint matching his or her mouse cursor.
In two player mode the object of the game is to cooperatively manipulate a line such that the midpoint of that line matches a point on the screen. In three player mode, the object is to match the centroid of a triangle to the given point. In each case, the users manipulate the object by using the endpoints or vertices as control points. Players receive a score based on how "close" their point matches the target.
Here's a picture of the Midpoint Activity user interface.
The midpoint activity was written as part of the METIP project and was supported in part by the National Science Foundation under grant number MDR-9155709.
