Why Lesson Planet?
Thoroughly written, this plan walks you through every detail of having your high school astronomers design scale models of the solar system. Complete instructions on building to scale, instructional activity procedures, and associated worksheets are all included. Use this as part of an astronomy unit and have groups work together to construct the models. One small problem is that Pluto is still considered a planet on one worksheet. However, this prompts a discussion on what defines a planet.