> > On Jan 22, 2013, at 12:08 PM, Richard Strausz > <Richard.Strausz@farmington.k12.mi.us> wrote: > > > Some of the 18 had many correct and decided on a > good strategy, but made a subtraction error early on > and therefore didn't get 100%. And, they didn't check > their work... > > I can believe that, depending on what "some" means. > > Can you just ask the teacher if he/she gave hints in > the beginning, and if not, how many students had the > strategy figured out in the end? > > Bob Hansen > I'll ask her, Bob. Do you have any suggested activities and/or assessments you recommend for pre-algebra or algebra classes?