Invocation: At the beginning of a unit, students should explore what makes a cradle civilization form.For your Ancient Civilizations unit, get students started by asking them to think deeply about biomes and natural resources before introducing each Cradle Civilization. A cradle civilization is one that pops up spontaneously from others, and there were six original cradle civilizations: Ancient Egypt, Mesopotamia, Ancient China, Ancient Andes, Indus Valley, and Mesoamerica. In this assignment, s