•                                                                                                              
    Grade 2 
     social groups   
     Social Group
     
        
     
    Grade 2  
    Language Group   
     
     
     
                          Grade 3 
              social groups   
                    Social Group
     
        
     
                         Grade 3  
             language groups 
                Language Group   
     
     
     
                         Grade 4     
              social groups  
                     Social Group
     
        
     
                         Grade 4  
             language groups 
               Language Group