Editing Abstract and concrete (section)

==Concrete and abstract thought in psychology==
{{unreferenced section|date=January 2021}}
[[Jean Piaget]] uses the terms "concrete" and "formal" to describe two different types of learning. Concrete thinking involves facts and descriptions about everyday, tangible objects, while abstract ([[Formal Operational#Formal operational stage|formal operational]]) thinking involves a mental process.
{| class="wikitable"
|-
! Abstract idea
! Concrete idea

|-
| Dense things sink.
| It will sink if its density is greater than the density of the fluid.
|-
| You breathe in oxygen and breathe out carbon dioxide.
| Gas exchange takes place between the air in the alveoli and the blood.

|-
| Plants get water through their roots.
| Water diffuses through the cell membrane of the root hair cells.

|}