Grade-level of achievement is an infinitely nebulous target that is far too abstract to serve any kind of real purpose in a classroom. We all know that two different teachers can assess the same assignment very differently. We also know that one teacher can assess the same assignment twice in the same day and provide two very different assessments. This kind of inherent subjectivity in grading is unavoidable.
In Alberta, the government tried to impose a Grade Level of Achievement data scheme on teachers, but it has proven to be a total joke. Here's why the Alberta Teachers' Association is right to oppose the whole ordeal.