 
   
  
    - Sensorimotor (0-2)
      
        - Reflex Base 
- Coordinate Reflex 
- Object Permanency 
 
- Preoperational (2-6/7)
      
 
- Concrete Operational (6/7-11/12)
      
        - More Than One Viewpoint 
- No Abstract Problems 
- Consider Some Outcomes 
 
- Formal Operational (11/12 & Up)
      
        - Think Abstractly 
- Reason Theoretically 
- Not All People Reach This Stage 
 
         jun 11 2012 ∞
 nov 8 2014 +