Metacognition is one of the key components in self-regulated learning which involves cognitive thinking and regulation of thinking. Cognition is the mental action or process of acquiring knowledge and understanding through thought, experience and the senses. Accommodation : may be described an alteration of environment curriculum format, or equipment that allows an individual with a disability to gain access to content. Centration : It is the tendency to focus on one salient aspects of a situation and neglect others possibly relevant aspects.