The purpose of this study was to examine the effects on expressive languages of children
with developmental delay by art representational activity using picture books. The subjects of
the study were 3 children in integrated kindergarten, whose developments were 6mths~1yr more
delayed by Preschool Receptive-Expressive Language Scale(PRES) and Psychoeducational Profile
Revised(PEP-R). Intervention in art activity representational activities was conducted for total
24sessions, 30minute, 3times in a week. To verify the effectiveness of this study, we used
multiple probe baseline design across subjects in a single subject research. The study was
conducted in this phase order: baseline-intervention-maintenance. The frequency for occurrences
were measured with collected materials to draw a conclusion. In the results from this study,
we found that art representational activity using picture books positively affected expressive
languages related to requests and responses of the children with developmental delay. Therefore,
we can see that art representational activity is the appropriate teaching method for improving
expressive languages of the children with developmental delay.