Final answer:
One important lesson helping professionals can take from Piaget's and Vygotsky's work is that understanding how young clients think can help in structuring interventions that build effectively on existing knowledge and meanings.
Step-by-step explanation:
One important lesson helping professionals can take from Piaget's and Vygotsky's work is that understanding how young clients think can help in structuring interventions that build effectively on existing knowledge and meanings. Piaget emphasized that children's cognitive abilities develop through specific stages, which means that they have different ways of thinking and reasoning compared to adults. Vygotsky's sociocultural theory focuses on the influence of culture and social interactions on cognitive development. Both theories highlight the importance of considering children's current cognitive abilities and social contexts when structuring interventions.