4x6 print is quite appropriate on school boards, science fair displays, and posters of presentation. When students or parents say how big is a photo 4x6, it is a convenient size of 4-by-6 inches which is large enough to see when someone is at short distance. Examples of combining 4x6 photos with captions, colored borders or comparison charts are found in educational tips on the Visuals Clipping. This renders the projects more graphic and easier to plan logically.