Look , Jimmy's report came today .   Let's have a look . What is this ? Where are all the grades ?   He's in the third grade Sam ! You see under each subject that he is being taught in school , he receives a mark from one to three . A one means his achievement or work is excellent . Here in Science for example he got a two , which means its satisfactory .   What about here in physical education ?   He got a three here which means it's unsatisfactory . We should work on that with him .   So confusing ! In my day we got an A or B if we were doing well and if we failed an exam we would get an F ! 