Hello, Sun! In this Thread, we will examine the passage of time by watching the world change outside of our classroom. ... This will allow us to begin thinking about the movement of either the Sun or the Earth as well as the shape of the Earth so that the motions make sense. ... For Hello, Sun!, ... Students will learn about the Sun as our light and heat source and about our world as having a regular time pattern, which can be observed from the simple motion of the Sun. ... What time of day is it? ...