How to read an ISMG (before you hand in your next draft)

Every QCE internal assessment task sheet comes with an ISMG — an Instrument-Specific Marking Guide. It is the exact grid your marker will sit with when they grade your work. Most students skim it once, decide it's teacher-speak, and go back to writing. That's a mistake: the ISMG is the closest thing to the exam answers you will ever legally be handed.

What the grid actually is

An ISMG is a table. Each row is a criterion — a skill the task is testing, like how you plan research, analyse evidence, or communicate. Each column is a performance level, a band of marks with a short description of what work at that level looks like. Your marker reads your whole response against each criterion and makes one holistic judgement about which descriptor best matches — it is not a checklist where every bullet point earns a mark.

That last part matters more than anything else in this article. You cannot "collect" marks by mechanically ticking off phrases. You earn a band by making your work, as a whole, read like the descriptor.

Read the top band first — then read it as a to-do list

Don't read the grid left to right. Go straight to the highest band of each criterion and underline the verbs and qualifiers. Top-band descriptors are built from words like justified, thorough, insightful, systematic and critical. The bands below use softer versions of the same sentence: described instead of justified, appropriate instead of thorough.

The difference between two neighbouring bands is almost never a different topic — it's the same sentence with a stronger verb. Which means the gap between your current draft and the next band up is usually a depth problem, not a content problem.

The verb ladder

QCAA's cognitive verbs form a ladder, and the ISMG tells you which rung the task expects. As a working shorthand:

• Describe— say what is there. "The temperature increased as CO₂ concentration increased."
• Explain— say why it happens. "…because CO₂ absorbs outgoing infrared radiation, so more of it raises the energy retained."
• Justify— defend a choice against alternatives. "…a linear model was used because the residuals showed no curvature across the tested range, unlike the exponential fit."
• Evaluate— weigh quality and limitations, and land on a judgement. "…the dataset is reliable within the tested range, but extrapolating beyond 420 ppm is not supported because no data exists there."

Notice each rung containsthe one below it. If your criterion says "justified" and your paragraph only describes, you have written a lower-band paragraph on a top-band question — no matter how polished the writing is.

Qualifiers are quantity words in disguise

The other half of descriptor language is qualifiers: thorough, considered, relevant, appropriate. These usually encode coverage. A common trap: you evaluate the quality of your bestdata source carefully and leave the others unexamined. That reads as "appropriate" — one good example — rather than "thorough", which wants the same scrutiny applied across all the evidence you used. If a qualifier appears in the top band, ask: have I done this everywhere, or once?

A five-minute routine before every draft hand-in

1. For each criterion, write the top-band descriptor at the top of a page in your own words.
2. Under it, list where in your draft you believe you do that thing — actual paragraph references, not vibes.
3. Anywhere the list is empty or thin, you've found the highest value edit available to you.
4. Check the verbs: find every place you described something the ISMG wants justified or evaluated, and upgrade the sentence.

This routine won't guarantee a band — nothing can, because the judgement is holistic and it belongs to your marker. What it does is make sure that when that judgement happens, there is real evidence on the page for the band you're aiming at.