0-3 months, 12-18 months, 18-24 months, 2 years, 3 years, 3-6 months, 4 years, 5 years, 6-9 months, 9-12 months, learning, teaching, toddler Three Period Lesson to Teach Your Child Any ConceptThere is a term called the “Three Period Lesson” in Montessori practice, which is ... Read More