The layout, design and decor of the classroom has a significant effect upon the quality of the educational experience.^[2] Attention to the acoustics and colour scheme may reduce distractions and aid concentration. The lighting and furniture likewise influence factors such as student attention span.^[3]

Historically, relatively few pupil-centric design principles were used in the construction of classrooms. In 19th century Britain, one of the few common considerations was to try and orient new buildings so the class windows faced north as much as possible, while avoiding west or southern facing windows, as in Britain northern light causes less glare.^[4] Desks were often arranged in columns and rows, with a teacher's desk at the front, where he or she would stand and lecture the class. Little color was used for fear of distracting the children. In the 1950s and 60s cheap and harsh fluorescent lights were sometimes used, which could cause eyestrain. Research has suggested that optimal use of daylight, acoustics, color selection and even the arrangement of the furniture in the classroom can affect pupils' academic success.^{[citation needed]} Georgetown University found that test scores increased by 11% through the improvement of a classroom's physical environment.^[5]

In the design of a classroom, desk arrangements are essential to the decor and design of the classroom followed by seating arrangements for the students. Usually classroom desks are arranged in rows or columns, but there are many more ways to arrange the desks. For example, a circle can be made with the desks so that it's more of a group discussion. The desks can also be in a "U" shape for group discussions and easy access for the teacher. Another common principle is arrangement in 'clusters' or small groups, which usually improves interaction and participation in (small) group-processes. Color is also a big asset to the classroom by relating the colors to the subjects learned in the classroom to help the students learn. Color also helps the atmosphere be fun and exciting, and helps visual stimulation for the students.