Phase I. Existing materials for the Care Coordination and tPST manuals will be edited and/or rewritten to make them specific to asthma. Then both the manuals and the proposed interventions will be assessed for cultural acceptability though two series of parallel focus groups: one for parents of children with asthma, and the other for home visitors already providing care coordination for families of children with asthma. The revised educational materials will then be translated into Spanish.