An itinerant/consultant program in Colorado provides services to children with mild to severe emotional and behavior problems. Three Itinerant Behavior Development (IBD) teachers service 24 elementary and 5 middle schools. The program, which expanded from behavior management to include curriculum modifications, overcame early staff resistance and is now generally accepted. IBD teachers work with teachers of self contained classes to promote mainstreaming. Placement decisions are based on a level of intervention format. A case study of a 12 year old with behavioral and learning problems is presented to illustrate the IBD philosophy of intervention and involvement with other staff. (CL)