Correct Answer - Option 3 : During adolescence
||Childhood(Pre-operational stage or early to middle childhood)
||Pre-adolescence(Later childhood or concrete operational stage)
||Adolescence(Formal operational stage)
|The child does not yet have a mental picture of the world stored in its memory therefore it does not have a sense of object permanence.
||Children have made some progress towards detaching their thought from the physical world.
||Children can think logically much more successfully if they can manipulate real (concrete) materials or pictures of them.
||From about 12 years children can follow the form of a logical argument without reference to its content.
|The main achievement during this stage is object permanence - knowing that an object still exists, even if it is hidden.
||However, have not yet developed logical (or 'operational') thought characteristic of later stages.
||This means the child can work things out internally in their head (rather than physically try things out in the real world).
||During this time, people develop the ability to think about abstract concepts, and logically test hypotheses.
|Language starts to appear because they realize that words can be used to represent objects and feelings.
Thinking is still intuitive (based on subjective judgments about situations) and egocentric (centered on the child's own view of the world).
||Children can conserve numbers (age 6), mass (age 7), and weight (age 9). Conservation is the understanding that something stays the same in quantity even though its appearance changes.
||This stage sees the emergence of scientific thinking, formulating abstract theories and hypotheses when faced with a problem.
Hence, we may say that adolescence is the age of conceptual understanding based on Jean Piaget. Also, there is ample scope for promoting concept learning under the adolescence stage of the learner because the learners have the ability to think abstractly with logical arguments.