Experiment House was the coeducational boarding school that Eustace Scrubb and Jill Pole attended. It was a poorly managed school, whose Head believed that children should be allowed to do what they liked. This resulted in little classroom learning and an unregulated group of bullies called the Gang. When Professor Kirke makes his often-heard comment, "...what do they teach them at these schools?", this may be the sort of school he is referring to.