The Education Index reflects the number of elementary schools, high schools, and universities in your country.The larger your educational system, the faster your citizens become educated. This means that you will train workers in the categories set by your education priorities.A helpful goal is to raise the Education Index to at least 100. An Education Index of at least 100 helps your country reach levels 2, 3 and 4. If you open more schools and universities, it may take several real days for the Education Index to reach at least 100.