David Kolb developed a model-based learning experiences. To Kolb "experience relates to the whole range of activities that allow learning".
Kolb identified two aspects of learning: the perception and processing: "learning is the result of the way people perceive and then process what they have seen."
He mentioned two opposite types of perception: people who see through concrete experience and persons perceived through abstract conceptualization. Some people processed through active experimentation while others through reflective observation.
Kolb has a four-quadrant model to explain learning styles:
1. Engage entirely without prejudice to situations that may arise.
2. Reflect on those experiences and perceive from various approaches.
3. Generate concepts and integrate their observations into logically sound theories.
4. Be able to use these theories to make decisions and solve problems.