When the child reaches the next phase of development, ages 6 to 12, imagination and reasoning are among the keys to learning. Elementary children experience an increasing awareness of the world and an interest in its wonders. The classroom can now excite the children by encouraging the use of the imagination to explore the universe. During this phase, they are presented with “the big picture,” an overview of the interrelatedness of things. Concepts are introduced through hands-on materials that encourage and engage the children and give them a depth of understanding that aids in their move toward abstraction.