Term 1 Week 7 · Inequalities in two variables and the region of solutions · CG Quarter 1, competencies 9–10
Put this up before the task starts, not after
| Criterion | 4Exemplary | 3Proficient | 2Developing | 1Beginning |
|---|---|---|---|---|
| The rule | A real local rule that genuinely describes a region | Real, but describes a single value | Invented but plausible | Invented and arbitrary |
| The inequality | Correct in two variables, with both variables defined | Correct, variables undefined | In one variable only | Not attempted |
| The graph | Boundary correct and correctly broken or solid; region shaded | One of the two wrong | Boundary only, no shading | Not attempted |
| The three test points | Three marked, substitutions shown, plus one on the boundary judged correctly | Three marked, substitutions shown | Marked, no substitutions | None marked |