The process of language development is like the process of intellectual development. Children first learn to think in concrete groupings of objects, which are connected by facts. First a child utters sound, which later is given a name that has meaning. The child links the object or desire to the gesture, sound, or word. This is further reinforced by the reaction of the other .
Children go through a set of stages of development to develop concept .
The child internalizes language. This gives the basic structures for eventual verbal language and conceptual thought. We should never underestimate the role of spoken and written language in early child development. Psychological tools allow us to close the gap between lower and higher mental functions. These include various systems for counting, mnemonic techniques, algebraic symbol systems, works of are, writing, schemes, diagrams, maps, and technical drawings, conventional signs, etc.