About This Lesson
Introduce addition with positive and negative numbers using a space theme and Sumdog's free math games. Begin with a classroom game with boy-girl teams as matter and anti-matter; then review online using our Alien Invaders game. We provide the lesson plan and editable student handout; plus there's no need to sign up!
This lesson provides and introduction to use of positive and negative numbers using an on-line site. Fun game with clear instructions.