1. A remote instruction system comprising: a server being provided with: an image capturing portion that captures an image of an object; a transmitting portion that transmits the image of the object to a remote terminal over a network; an attention image outputting portion that causes output of an annotation image, the annotation image being created on the basis of the captured image and being drawn on the captured image at the remote terminal, the annotation image being transmitted to the server, the attention image outputting portion further outputting an attention image, the attention image being configured to attract attention to the annotation image, the attention image outputting portion determining a shape of the attention image according to a shape of the annotation image; and a projecting portion that causes projection of the attention image and the annotation image onto an area of the object, wherein the attention image outputting portion determines if the annotation image is projected onto the object, and the attention image outputting portion causes the attention image to be projected onto the object in response to the annotation image being drawn on the captured image.