Ungraded three-year age span
Teacher is observer/guide
Child completes activities without interruptions
Child chooses learning activity
Satisfaction derived from learning
Students quiet out of respect
Children responsible for physical order in class and care of animals
Environment provides discipline
Children encouraged to help one another

Graded one-year age span
Teacher imparts knowledge
Activity cycles scheduled, children kept on schedule
School curriculum standard
Grades and competition
Quiet enforced by teacher
Teacher responsible for order in class and care of animals
Teacher provides discipline
Children compete with one another