"Depends on the function of the classroom. Secondary classrooms are the least restrictive. ideally, a whiteboard spanning the width of the front wall, a doorway not at the front of the class so it does not obstruct the teacher. passive lighting and large eaves to prevent glare from direct sunlight, particularly off the whiteboard.
Room to allow 26 students to spread out for a test, about 15 tables separated so 2 students can sit on the ends, a room about 6m deep does this. noise insulation is an oft neglected bonus. specialty classrooms must be able to fit equipment/machinery, particualrly wood and metal workrooms. safety also demads adequatespace to move and work.easily cleaned surfaces, especially in art rooms is recommended.
For primaryschool, they havezones. storage is paramount. The class needs to be able to be seated at their desks. 3desk clusters, 6 students per cluster, 4-5 clusters. a carpeted area where students can sit on the floor for group reading, discussions, showntell etc. In this areais a low comfy chair for the teacher and a small whiteboard on a easle contraption, with draw n storage at the back. a wet area with vinyl or rubber flooring for painting etc. exposed beams or scaffolding is almost essential to hang lines to display work. A wall with about 6 computers along it is common. The walls should be able to handle displays being pinned or taped up and removed frequently.
Also, it is useful to pair up classrooms with a small room between. This room commonly has a big table, a whiteboard, and a few more computers. This roomalso serves as shared storage. This roomshould have the capacity to be observed from either of the classrooms. Concerins doors allow this and also permit the two classes to be opened up to one big room for combined activities and minor assemblies.
Lighting is not as important in primary rooms. Primary rooms should have a large whiteboard too.That is all i can think of."