Charter schools usually are run by a board comprised of the teachers in the school and a few of the students' parents. The board makes its own decisions on-site. Unlike other public schools, a charter school does not have to seek approval from the school district or school board before it can take action.
because the earth is tilted on an axis, when its tilted away from the sun, they get no sunlight. In the Winter, the earth's north pole points away from the sun, so it is dark for 6 months. In the summer it points towards the sun, so it is bright for 6 months. The earth tilts back and forth on its axis.
Arctic Circle: Experiences 12 hours of daylight and 12 hours of darkness. The sun is 66.5 degrees off of the zenith or 23.5 degrees above the horizon. Tropic of Cancer: Experiences 12 hours of daylight and 12 hours of darkness.