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.
As Uranus orbits the sun, the north pole will be in daylight for half of a year (spring and summer). This means a Uranus day is the same as a Uranus summer. One day or else Uranus does not have winter (depending on how you define winter). Remember that Uranus rotates on a 97.7 degree tilt. It's north pole always faces the sun and it's south pole always faces away from it.