| A | B |
| Reflex | An automatic body response to a stimulus. |
| Infant | What a child is called during the first year after birth. |
| Object Permenance | The understanding that objects exist even if you cannot see them . |
| Separation Anxiety | When a child is unhappy because a caregiver is leaving. |
| Deferred Imitation | Children deonstrate this by watching another person's behavior and acting it out later. |
| Gross Motor | Development which involves the improvement of skills using large muscles. |
| Attachment | Behaviors which show that infants care for and respond to certain people who are important to them. |
| Social-Emotional | Development which involves learning to relate to others and refining feelings and expressions of feelings. |
| Temperament | Reflected by the way a child reacts to his or her environment. |
| Physical | Development which refers to changes in the body. |
| Motor Sequence | The order in which a child is able to perform new movements. |
| Preschooler | The term which describes a child who is between the ages of three and six years of age. |
| Fine Motor | Involves skills that relate to the small muscles. |
| Toddler | A child is called this from the first year until their third birthday. |
| Cognitive | Development which refers to the mental processes used to gain knowledge. |