adj: instructive or intended to teach or demonstrate
                                                            
                                                     
                        
                                                
                        
                        
                            Instruction presented from an authority.
                                                            
                                                     
                        
                                                
                        
                        
                            Intended for instruction; inclined to teach or lecture others too much. A consultant can ensure that the first definition is achieved, rather than the second.
                                                            
                                                     
                        
                                                
                        
                        
                            Explicitly instructive. A didactic poem or novel may be good or bad. Pope's "Essay on Man" is didactic; so are the novels of Ayn Rand.
                                                            
                                                     
                        
                                                
                        
                        
                            instructive (especially excessively) 
                                                            
                                                     
                        
                                                
                        
                        
                            Learning method for instruction, that consists mainly of presentation and traditional teaching methods.
                                                            
                                                     
                        
                                                
                        
                        
                            teaching a lesson or having a “moral"
                                                            
                                                     
                        
                                                
                        
                        
                            Designed to give instruction.
                                                            
                                                     
                        
                                                
                        
                        
                            The branch of education dealing with teaching.