LEADERJOY is a professional montessori material and educational toys manufacturer in China.

Nido (or "nest" in English) describes the nurturing classroom environment designed for infants aged around 6-12 weeks up to 16 months old. All of the young child's developmental needs are met with warmth and care by expert staff, such as their desire to walk and talk, eat and drink independently, and understand the world around them.

IC is the abbreviation of Infant Community in English, which means infant community.
Montessori IC Environments support the developmental needs of infants and toddlers, and they focus on fostering independence, sensory exploration, and social interaction through age-appropriate materials and activities. Children are allowed to explore and discover at their own pace.

Montessori Casa refers to the Montessori preschool program for children aged 2 ½ to 6 years old. It is the first level of the Montessori education system and is often called the "Children's House" or "Casa dei Bambini" in Italian.
The Montessori Casa program is based on the educational philosophy and methodology developed by Dr. Maria Montessori. It provides a child-centered environment that focuses on the holistic development of the child, encouraging independence, self-discipline, and a love of learning.