A 2-year-old child who has developmental delay secondary to fetal alcohol syndrome is receiving early intervention home services. During a session one week ago, the COTA gave the caregiver a switch-activated toy to incorporate into the home program. When the COTA arrives for the weekly session, the caregiver tells the COTA that the child does not have any interest in playing with the toy and has not used the toy since the last visit. Which action should the COTA take.