Gap Analysis from Student Work

What This Skill Does

Analyses a student work sample against assessment criteria, identifies specific gaps (not just "needs improvement" but exactly WHAT is missing and WHY), classifies each gap by type (conceptual misunderstanding, procedural error, or communication/presentation issue), and generates targeted next teaching steps — specific actions the teacher can take to close each gap, rather than generic advice like "practise more." The output also includes a feedback script showing how to communicate the analysis to the student in a way that promotes improvement. AI is specifically valuable here because effective gap analysis requires simultaneously comparing the work to the criteria, diagnosing the type of gap (which determines the remedy), identifying strengths (which maintain motivation), and designing a targeted next step (which requires pedagogical knowledge) — a multi-layered analysis that takes significant time and expertise to do well.

Evidence Foundation

Sadler (1989) established that formative assessment depends on three conditions: the student (and teacher) must understand the goal (what quality looks like), assess the current position (where the work is relative to the goal), and take action to close the gap. Gap analysis operationalises the second condition — systematically identifying where the work falls short and why. Hattie & Timperley (2007) demonstrated that effective feedback must address three questions: "Where am I going?" (the goal), "How am I going?" (current performance relative to the goal), and "Where to next?" (specific actions to close the gap). Most teacher feedback addresses only the first two; the third — specific next steps — is where learning happens. Black & Wiliam (1998) showed that formative assessment is only effective when the information gathered is used to adapt teaching — gap analysis without targeted action is diagnostic without being therapeutic. Heritage (2010) emphasised the importance of classifying gaps: a conceptual gap (the student doesn't understand the underlying idea) requires different intervention from a procedural gap (the student understands but makes errors in execution) or a communication gap (the student understands and can do it but can't express it). Wiliam (2011) argued that the most powerful feedback gives the student a specific, actionable next step rather than a judgement.

Input Schema

The teacher must provide:

• Student work description: What the student produced. e.g. "Student wrote: 'The writer uses a metaphor to describe the storm. This is effective because it makes the reader interested.'" / "Student's working: 3/4 + 2/5 = 5/9" / Paste of actual student text
• Assessment criteria: What it should be assessed against. e.g. "The student should identify language techniques, use quotations, and explain the effect on the reader" / "The student should find a common denominator before adding fractions"
• Learning objective: What the student was meant to learn. e.g. "Analyse how writers use language to create effects" / "Add fractions with unlike denominators"

Optional (injected by context engine if available):

• Student level: Year group