This paper describes an approach to teaching grammar which has been designed for school-aged children with specific language impairment (SLI). The approach uses shapes, colours and arrows to make the grammatical rules of English explicit. Evidence is presented which supports the use of this approach with older children in the areas of past tense morphology, comprehension of dative structures and comparative questions. I conclude that there is sufficient evidence that this kind of intervention can be effective with these older children. This challenges the current move to reduce direct intervention for school-aged children.