An image projection apparatus includes an image receiver; an image processor to convert an image signal to a projection signal; a projection unit to project a projection image on a projection screen; a coordinate calculator to calculate coordinates of a point on the projection screen when the point is identified by a coordinate input device; an interactive communication unit to communicate with the coordinate input device, and an external apparatus; a user direction detector to detect a user direction where a user that performs an operation of inputting the coordinates of the point exists based on the coordinates of the point input by the coordinate input device and coordinates defining an area of the projection screen; and a screen rotation determination unit to determine whether the user is performing the inputting operation and the projection screen is to be rotated based on the detected user direction.