GradeThis.ai

GradeThis.ai

Examples

See how GradeThis works

Step through a real graded student submission, then explore ready-to-grade assignments for AP, IB, and other standardized courses — or bring your own exam.

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Exam 1Introduction to Calculus · MATH 101
Graded
Score80/100
Questions graded
12
Flagged for review
7
Pages matched
6/7 matched
  • q110/10
  • q211/16
  • q34/6
  • q412/12
  • q57/9
  • q61/8
  • q77/9
  • q86/6
  • q95/6
  • q105/5
  • q114/5
  • q128/8

See where points were lost, understand the feedback, and know what to review next.

Review

Review the reasoning, not just the answer

Every score is attached to a rubric criterion and to the student's own work, so you can check the argument behind a mark instead of trusting a number.

Each criterion carries its definition and the rationale for the points it awarded, so a score is never an unexplained total.

Change any criterion score and the submission total follows immediately. Try it — the edit is yours to keep or reset.

The pages the grade was drawn from stay attached to the question, so you can confirm a judgement against the handwriting itself.

q211/16
89%
Needs Review
C1
4/4
100%

Part (a): Finds f(x-2). Award 4 points for the fully simplified correct quadratic x² − 9x + 17 (equivalent orderings such as −9x + x² + 17 accepted). Award 2 points if the correct substituted form (x−2)² − 5(x−2) + 3 is explicitly shown but the student makes an arithmetic or algebraic slip when expanding or combining like terms. Award 1 point if the student substitutes x−2 for x but produces a structurally incorrect expression due to missing parentheses (e.g., x−2² − 5x−2 + 3) with no valid intermediate expression. Award 0 points for no work or a fundamentally invalid method. Errors in this part do not carry forward to other parts.

Student explicitly shows substitution (x-2)^2 - 5(x-2) + 3, expands to x^2 - 4x + 4 - 5x + 10 + 3, and correctly simplifies to x^2 - 9x + 17. Image confirms fully correct work and final answer.

C2
4/4
100%

Part (b): Finds 5f(x). Award 4 points for the fully simplified correct expression 5x² − 25x + 15. Award 2 points if the student writes the correct unsimplified form 5(x² − 5x + 3) but fails to distribute fully, or distributes to all but one term (e.g., 5x² − 25x + 3 or 5x² − 5x + 15). Award 0 points for no valid multiplication by 5 or an invalid expression. Errors in this part do not carry forward to other parts.

Student writes the fully simplified correct expression 5x^2 - 25x + 15 in the boxed answer for part (b). Image confirms correct final answer.

2 more criteria are scored on this question in the full workspace.

Insight

Turn grading into learning insight

Once a class is graded, the criterion-level record is a dataset. GradeThis reads it for repeated misconceptions rather than leaving you to infer them from a spreadsheet of totals.

Errors are grouped by what actually went wrong, with the count of students affected and the points still recoverable.

See at a glance which questions held up and which ones cost the class points and need a second look.

Findings arrive as a concrete plan for the next class, ordered by frequency and by how many points are worth recovering.

Misconception clusters

read_gradebook32 submissions and 384 criterion scores loaded
done
calculate_error_clusters19/32 students share the unsupported-answer gap
done
draft_intervention_planprioritized by frequency and recoverable points
done
Snapshot
  • 19/32 lost points to unsupported answers (e.g. boxing f(5x) with no substitution shown)
  • 15/32 misread or misplotted intercepts and slope sign (x-intercept at −2 instead of 2; slope +3 instead of −3)
  • 11/32 confused a product like (fg)(−1) with the composition f(g(−1))
  • 5 students need individual review because their written work shows a different misconception

Control

Keep instructor judgment in the loop

GradeThis proposes; you decide. Uncertain work is surfaced rather than quietly finalized, and every change is recorded.

Low-confidence and point-losing questions are flagged and ordered, so limited review time goes where it changes the grade most.

Write the note where the point was lost. It stays attached to the criterion, so the student sees why, not just how much.

Every criterion keeps an immutable trail of the AI's original score and each human revision after it — a defensible record for any grade appeal.

Review queue

Flagged questions, most recoverable points first. Open one to review it.

  1. 1
    q61/8
    92%
    Needs Review

    7 points still recoverable

  2. 2
    q211/16
    89%
    Needs Review

    5 points still recoverable

  3. 3
    q34/6
    92%
    Needs Review

    2 points still recoverable

4 more flagged questions are waiting in the full workspace below.

Exam Library

Start with the course you already teach

Browse ready-to-grade assignments for standardized courses, or bring your own exam and use the same GradeThis workflow.

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Advanced Placement

Explore ready-to-grade AP Calculus BC, Chemistry, Physics 1, and more.

Browse AP assignments

International Baccalaureate

Find written-response assignments for IB courses as the collection grows.

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Bring your own exam

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Interactive sample

See what GradeThis reveals

This is a real student submission, graded on GradeThis and shown with permission. The review uses the same components as the product.

Real submission

Submission review

Score, submission context, question-level rubric review, and the full grade audit trail in one workspace.

Score80/100
StatusGraded
GradingGraded
StudentJohn Smith
Identifier812463
Student MatchManual Matched
Pages6/7 matched
AssessmentExam 1
Review queue7 flagged
ProcessedJun 16, 04:09 AM

Question Prompt

6. Sketch the graph of the following equation. Identify the intercepts. $y=-\frac{1}{2} x+1$ (8 points)

AI Rationale

The student provided a graph with no textual identification of intercepts, earning 0 on C1 and C2. The graph correctly plots the y-intercept at (0, 1) for 1 point on C3, but plots the x-intercept at (-2, 0) instead of (2, 0), earning 0 on C4. The line has a positive slope rather than the required negative slope, earning 0 on C5. Total: 1 of 8 points.

Rubric Criteria (5)

C1
/ 2

Identifies the y-intercept as (0, 1). Accepts equivalent forms: y-intercept = 1, or the statement 'when x = 0, y = 1'. Award 1 of 2 points if the numeric value 1 is correct but is given only as an unlabeled number with no indication it is the y-intercept. Award 0 points if the value is incorrect.

The answer area contains only a graph with no written text identifying the y-intercept. No numeric value, coordinate, or statement indicating the y-intercept is present.

C2
/ 2

Identifies the x-intercept as (2, 0). Accepts equivalent forms: x-intercept = 2, or the statement 'when y = 0, x = 2'. Award 1 of 2 points if the numeric value 2 is correct but is given only as an unlabeled number with no indication it is the x-intercept. Award 0 points if the value is incorrect.

The answer area contains only a graph with no written text identifying the x-intercept. No numeric value, coordinate, or statement indicating the x-intercept is present.

C3
/ 1

The sketched graph shows a point, mark, or line crossing at the correct y-intercept location (0, 1) on the y-axis. Award 0 points if missing or plotted at a wrong coordinate.

The sketched line crosses the y-axis at the first tick mark above the origin, which corresponds to the correct y-intercept location (0, 1).

C4
/ 1

The sketched graph shows a point, mark, or line crossing at the correct x-intercept location (2, 0) on the x-axis. Award 0 points if missing or plotted at a wrong coordinate.

The line crosses the x-axis at the tick mark labeled -2 on the left side of the origin, i.e., at (-2, 0), rather than the correct x-intercept location (2, 0).

C5
/ 2

The graph is a single straight line with negative slope that passes through the correct intercepts (0, 1) and (2, 0). Award 1 of 2 points if the line is straight with negative slope but fails to pass through one or both correct intercepts. Follow-through: if an intercept is misplaced due to an earlier algebraic error already penalized in C1 or C2, award 1 of 2 points provided the line is straight with negative slope and passes through the student's own plotted intercept points. Award 0 points if the graph is curved or has positive slope.

Although the graph is a single straight line, it rises from left to right, indicating a positive slope. The line passes through the student's plotted points (0, 1) and (-2, 0) but not through the correct intercepts, and it does not have the required negative slope.

Student Answer Evidence (1)

Submission Pg 4 · Canonical Pg 4Open

OCR Preview

5. Find the equation of the line with the given conditions. Make sure you final answer is in slope intercept form. (9 points) a. The slope is -3 and contains the point (-1, 4) $$ y = - 3 x + 1 $$ b. x-intercept = 7/3 and y-intercept = 7…

Preview — expand to see all 7 flagged questions and the full grade audit trail.

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