Non-projected visuals are instructional aids that do not require equipment for projection. They include real objects, models, pictures, field trips, and displays. Some advantages are low cost, no need for electricity, and ability to be used in different levels and subjects. However, they can be damaged easily and hard to store. Common types are real objects, models, mobiles, pictures, graphics, photography, and field trips. Guidelines for use include making materials large enough for groups, limiting distraction, and asking questions to encourage interaction.