it is moreover possible that schools share the same kit across classes so that the above figure constitutes a lower bound for exposure some schools purchased mobile kits mobile iwb and laptop or share classrooms between different classes although traditionally each classroom is used by a single class group and pupils stay with the same class group throughout the day and school year schools are free to adopt a different organisation of their space of all iwbs purchased with funds from the piano lim are mobile kits and are located in dedicated labs science music or arts labs multimedia rooms etc