| A | B |
|---|
| neuron | nerve cell |
| neural pathways | links between neurons that "wire" the brain so that the brain can control different body functions and thinking process |
| cortex | Part of the brain's cerebrum. Its growth permits more complex learning |
| axon | The connection between neurons that transmits instructions from the cell body to another neuron |
| myelin | Waxy, protein-based substances that coats axons, making it easier to transmit information from one neuron to another |
| dendrite | Branchlike features at the end of each axon that receive messages from other neurons |
| synapse | Tiny gaps between dendrites where messages are transmitted from one neuron to another. |
| neurotransmitter | Chemicals released by axons that attach to dendrites with certain kinds of receptors |
| perception | The ability to learn from sensory information |
| attention span | The length of time a person can concentrate on a task without getting bored. |
| sensorimotor period | Psychologist Jean Piaget's first stage of learning, from birth to about age two. During this period babies learn primarily through their senses and their actions. |
| object permanence | The concept that objects continue to exist even when they are out of sight. |
| imaginative play | Fantasy or dramatic play which imitates real-life situations |
| symbolic thinking | The use of words and numbers to stand for ideas. |
| concepts | General categories of objects and information |
| age appropriate | Things that are suitable for the age and individual needs of a child |
| childproof | To take steps to protect a child from possible dangers in the home or early childhood classroom |
| manipulate | To work with the hands |
