This lesson teaches the children about the 5 dwarf planets or plutoids. When we were kids, we were told there were 9 planets, now with science and technology, our 9th planet has been renamed as a dwarf planet and 4 others have been discovered. This lesson has where each of these planets are, who discovered them, how big they are and how long their orbital period is. This is a great extension lesson to teaching them the solar system. I have also posted questionnaire to go along with it to eva