Let me give you some information: (Try to imagine that you’re going to learn it.) The Earth-Sun distance is used as unit of distance called the Astronomical Unit. 1 AU.  The Earth-Moon distance is 0.0026 AU to 2 significant figures.  The nearest Star is Proxima Centauri (part of the Alpha Centauri system. Pronounced ‘Sen-TOR-eye’). The … Continue reading →https://teacherhead.com/2017/03/23/too-much-teaching-is-wasted/