 
          47
        
        
          
            COMPONENTS AND DEVICES
          
        
        
          
            
              CIRCUIT
            
          
        
        
          
            Brainstorm:
          
        
        
          What is an electric circuit?
        
        
          What types of circuits can you mention?
        
        
          
            Work in groups of three. Choose one of the terms to research:
          
        
        
          
            a series circuit,
          
        
        
          
            a parallel circuit,
          
        
        
          
            a complex circuit.
          
        
        
          
            Find several explanations of a term (a dictionary definition, an
          
        
        
          
            encyclopedia explanation, an internet site)
          
        
        
          
            Table 4
          
        
        
          term
        
        
          a dictionary
        
        
          definition
        
        
          an encyclopedia
        
        
          explanation
        
        
          an internet site
        
        
          
            Compare these explanations and decide on the most appropriate one
          
        
        
          
            Write a definition in your own words
          
        
        
          
            term
          
        
        
          
            my definition
          
        
        
          
            Draw a simple diagram to understand and remember the term
          
        
        
          
            Explain your term to other groupmates. Be able to answer any
          
        
        
          
            questions
          
        
        
          
            
              Vocabulary preview
            
          
        
        
          
            Study the following words and try to use them in this topic
          
        
        
          control device – n [C] a device used to regulate or guide the operation of a
        
        
          machine, apparatus or system:
        
        
          
            Switchgear not only need electrical control
          
        
        
          
            device, but also need manual control.