Final answer:
The most likely area where the OT would suspect a problem based on the child's difficulty with interlocking blocks, is Constructional play, which involves problem solving and motor skills in tasks such as building and creating things.
Step-by-step explanation:
Based on the scenario given where a child has issues with problem-solving using interlocking blocks, an Occupational Therapist (OT) would most likely suspect a problem in the area of Constructional play. Constructional play involves activities such as building and creating things, which require problem-solving, perseverance and fine motor skills.
In the developmental context, children engage in different forms of play that help them develop various complex skills. In Sensorimotor play, a child explores and experiments with objects by 'doing', such as shaking a rattle for sound or dropping things from heights. Pretend play, as in Piaget's preoperational stage, involves using imagination to create a world, like holding a stick as if it were a sword. Play with rules involves the child understanding and following established guidelines or rules for the play.
However, Constructional play, relevant in this case, involves the coordination of cognitive and motor skills in tasks like using blocks to construct structures. It requires logical thinking for planning and executing a structured play goal.
Learn more about Constructional Play