The teaching method of having a teacher move through ages or grades with the same students for two or more years.

The ability to identify numerical patterns and think abstractly.

The concept that the human brain is primed at particular times to make specific developmental advances, especially during infancy and early childhood. This theory was developed based on the observation of a large number of children.

Artistic movement within a group that tries to show the tone and emotion of speech and music. The study of eurythmy allows individuals to improve their focus, self-discipline, and sense of beauty. It also improves sensitivity to the group as well as individual body awareness.

A difficult situation which can’t be resolved by any single, clear course of action based on law or research. There are positive and negative outcomes likely for any course of action taken.

A state in which a child is satisfied with their set of knowledge, ideas, and beliefs and feels mentally comfortable or in balance. A concept formulated by Piaget.

Actions and skills demonstrated by infants and pre-school children that are based on early experience with letters and words.

Learning and direction for further learning that spring from a student’s interests and experiences.

Materials that display the process a child worked through to complete a project including the end-products, photos, teacher notes, and conversations.

Materials designed to teach a specific topic or to be used in a specific way, as opposed to open-ended materials which allow for many uses.