Worked examples
Four students, one rubric, four next steps.
Each example follows one math question from the students’ handwritten work to the feedback they read. It shows how a rubric can credit different valid methods, tell an arithmetic slip from a deeper misunderstanding, and leave the final decisions with the teacher.
Choose an example
Algebra and functions, Grades 9 to 11
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MTH1W · Grade 9 style
Solving and checking a linear equation with fractions
Two valid methods, a missed term, a sign slip, and why the "check" step deserves its mark.
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MPM2D · Grade 10 style
Finding the x-intercepts of a quadratic
Factoring versus the quadratic formula, an arithmetic slip versus a sign error, and the same mark with different next steps.
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MCR3U · Grade 11 Functions style
Vertex form: zeros, domain, and range
A missing ± sign, one misunderstanding that costs two marks, and a teacher ruling on follow-through.
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Course codes describe the style and level of each question. The examples aren’t official curriculum materials.
What each example shows
The whole marking loop, on one question
- The question and the teacher’s answer key.
- The rubric the teacher approved, and the decisions they made before marking.
- Four students’ work, line by line, with marks for each rubric item.
- Where the teacher agreed with the draft, and where they changed it.
- The feedback each student reads: what worked, where to look again, what to try next.
- A follow-up question for fresh evidence after the papers go back.
How to read them
Rubric decisions belong to the teacher
Partial credit depends on what an assessment is meant to measure. One teacher requires the check on a “solve and check” question; another doesn’t. One accepts x-values for intercepts; another wants points. Each example states its rulings so you can see where your own rubric would differ.
In MarkScanner, the teacher approves the rubric and the final marks. The software drafts; it doesn’t decide. How the workflow fits together.
Free resource
Math feedback comment bank
Common errors in algebra and functions, each with a vague comment and a better one that gives the student something to do. Free to copy and adapt.
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Try MarkScanner with your next quiz or test
Use your own account and your own papers. You approve the rubric, review the draft marks, and decide what goes back to students.
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