A bulletin board is an instructional tool that can supplement learning when used properly. It provides a surface for posting messages or information to reinforce instructional goals, communicate essential classroom information to students, and include and monitor student work and progress. An effective bulletin board should have a unified theme, avoid overcrowding, and be visually appealing through balanced use of color, images, and spacing. Teachers can use bulletin boards to display materials related to the current unit of study, classroom rules and schedules, student work, and seasonal decorations.