How does the phenomenon of blocking support a cognitive interpretation of classical conditioning?

These are questions I need answers to. At least 150 words per answer with in-text citations from peer-reviewed sources in APA format. The following questions are: 1. How would you use shaping to teach a child to ride a tricycle?2. How does the phenomenon of blocking support a cognitive interpretation of classical conditioning?3. How would you use the Premack principle to get a child to clean his room?4. Why do researchers still disagree about the existence of a causal relationship between televised violence and real-life aggression?