A data model explicitly determines the structure of data. Data models are specified in a data modeling notation, which is often graphical in form. A data model can be sometimes referred to as a data structure, especially in the context of programming languages. Data models are often complemented by function models, especially in the context of enterprise models.
The Association Montessori Internationale (AMI), founded by Maria Montessori in 1929, maintains Montessori educational principles and disseminates Montessori education throughout the world.
The next group is the 12-15 which is, at least in the West, a more emotional time with less ability to focus on intellectual work. Dr. Montessori called this time the Erdkinder CHildren, and proposed a farm school with real work close to the earth.he basic collection of didactic materials (such as that approved by the materials committee of AMI, The Association Montessori International) has been thoroughly tested over many years and has been shown to engage the children as much today as it has, as much in the USA as in other countries.