Two to five years of experience in school administration is a common job requirement for a superintendent. A board of education views principal or assistant principal experience as highly desirable. Management experience above the principal level, such as that of a curriculum administrator, is also an asset. In most cases, teaching experience is a prerequisite to becoming a school administrator. Superintendent certification requirements may stipulate at least five years of teaching experience in addition to tenure as a school administrator.
Basic Types of Grasslands based on Climatic Dryness. 1. Tropical Grasslands-Tropical Grasslands are located near the equator, between the Tropic of Cancer and the Tropic of Capricorn. Most of the Tropical Grasslands are found in the interior part of continents between the Tropical Rain Forests and Tropical Deserts.atural Grasslands primarily occur in regions that receive between 500 and 900 mm (20 and 35 in) of rain per year. Grasslands can exist naturally in areas with higher rainfall when other factors prevent the growth of Forests, such as in serpentine barrens, where minerals in the soil inhibit most Plants from growing.
The two main kinds of grasslands ecosystems are: 1  Savanna: The tropical grasslands are dry seasonally and have few individual trees. 2  Prairies: It is temperate grassland, completely devoid of large shrubs and trees.here are two main types of aquatic ecosystem-Marine and Freshwater. The Marine Ecosystem Marine ecosystems are the biggest ecosystems, which cover around 71% of Earth's surface and contain 97% of out planet's water.