I have not completed the activity so I can not comment on accuray. However, I will use this with grade 9 applied students next week. (S0, I will have solutions soon. I want to learn how to get those diagrams into your word doc. They are pefect. I have a smartboard/whiteboard in my classroom equip with GeoSkpd. I would like to develop some lessons too, sadly I am not good at the diagram part (yet). If you have time please tell me how do it. Thanks,great handout for 9's. d.chacinski@sympatico.ca