Present study paid attention to “flexible teaching” written in the national curricurum for kindergarten. An effective behavior support program was examined targeting the child with developmental disabilies enrolled in the kindergarten. “Basic teaching skills” were conformed to the kindergarten condition and the teacher’s needs. These didn't only contribute on to the teacher's individual professional development, and it was effective in building of kindergarten-wide behavior support system, as well. And two studies went in order. In the study I, it was examined that the effects of “basic teaching skills” in the university educational counseling room became behavior support. In the study 2, teacher’s and child’s change in behavior were evaluated at the kindergarten setting. A university staff went through behavior consultation based on the direct observation in the kindergarten in case conference. “Flexible teaching” was realized by a private kindergarten and collaboration of the university educational counseling room being guaranteed, and it became possible that the reflection of the teaching process and the opportunity of the evaluation were set up by the performance feedback procedure.