Infant speech using the tongue and the front of the mouth to make a consonant-vowel sound such as ba.

An idea formed by combining what is known about a person, object, place, quality, or event.

Light, happy, vowel-like sound babies use to communicate between six and eight weeks after birth.

Ability to tell how car away something is.

Ability to understand that objects, people, and events are separate from a person's interactions with them.

Ability to understand that objects remain the same even if they appear different.

Ability to understand that an object stays the same from one time to the next.

Ability to understand that people, objects, and places still exist even when they are no longer seen, felt, or heard.

Infant-directed, sing-song, high-pitched style in which parents and other adults speak to babies.

Words a person understands, but does not say or write.

Term that describes how all infants, regardless of culture, are born with the internal drive to learn certain concepts and skills in holistic ways and at approximately the same age.

Working together of muscles to form movements.

Setting that offers a person many chances to learn

Using the senses to learn about the environment.

Vision achieved when using both eyes in unison, equally, and accurately to fuse in the brain the two images into one image.

The act or process of knowing or understanding.

A person's conscious, intentional recalling of experiences and facts.

A person's unconscious awareness of past experiences to perform tasks.

Organizing information that comes through the senses

The process of making sense out of sensory stimuli

Varying levels of instructional support given to help children learn a new concept or skill.

Changes to the environment, such as light, sound, heat, or texture, that affect sensory organs and cause a person to react.

The level at which a child can learn with help.