This curriculum deals with the concepts:
Atmosphere and its PhenomenaThe Work of the Wind, andThe Hydrosphere and its Phenomena.
Since our founding year of 2003, ETC® has expanded its reach, becoming a Total Montessori company with a goal of understanding and meeting the needs of the Montessori community. ETC® Montessori is the largest publisher of Montessori curriculum serving teachers and students from early childhood through middle school.