A brilliant resource that incorporates: Algebra, rearranging equations, changing the subject in equations, applying algebra to a problem, team work. I made this resource and got offered a job when I did a job interview. They said it was the best planned and most engaging lesson they had ever seen. Keep it up your sleeve for an observation from your Head of Department or even better OFSTED. Mission cards should be printed backed and laminated and the resource can be re-used over and over. The task involves simple algebra, changing the subject, positive and negative numbers.