The Discovery of the Solar System

Learners explain the observed motion of the planets. The inner ones move back-and-forth across the position of the Sun, while the outer ones usually advance in one direction, but with occasional temporary reversals known as "retrograde motion. "

9th - 12th English Language Arts 3 Views 3 Downloads
Resource Details

Resource Type
Lesson Plans
Instructional Strategy

What Members Say

Matthew P.
Yes, Lesson Planet is helpful.
Matthew P., Teacher
North Chelmsford, MA