This behavior illustrates us that the meaning of an utterance, not the physical stimulus, is most important for predicting behavior. Even though the words that are used may vary, the meaning is the same. It is very important to people to know what is behavior they are acting to that they will be aware to the people around them.
Answer: Vygotsky's theory of cognitive development
Explanation: Vygotsky's Cognitive Development Theory is the theory that states about the constructive behavior of the children to obtain the cognitive factors. Instruction ,guidance and interaction on social base is considered as the feature of the theory which enhances the learning , solving problem and other skills.
The situation mentioned in the question describes about the Vygotsky's theory because Dr Smith believes in improving the knowledge through instruction in 9-year old .
Dont understand take a pictureof what you're 2
It stopped people from trading and it weakened the society