Critical Incident Analysis

A teacher’s working week contains many small events and a few that stand out. The ones that stand out usually carry information about the teacher’s assumptions. Critical incident analysis is a method for using these standout events to surface and examine the assumptions that shape practice.

What critical incident analysis is for

Critical incident analysis (CIA) helps teachers examine the extent to which critical analysis is showing up in their practice. The term “critical incident” refers to any work a teacher does that involves analysing situations, reflecting on past experience, making judgements and decisions, and taking action without the benefit of a standard protocol or uniform response.

These are the moments where the teacher’s working assumptions show up most clearly. A routine task uses routine assumptions. A surprising event tests them.

The method aims to produce two things:

1. A clearer picture of what the teacher is assuming as she works
2. A way to check whether those assumptions are accurate

A teacher who runs CIA over time tends to find her practice resting on fewer unexamined assumptions and more tested ones.

When to do critical incident analysis

The recommended cadence is weekly. A weekly audit gives the teacher a regular rhythm of examination without becoming so frequent that it feels burdensome. Some teachers run it less often (every two weeks, or end of term) and still benefit, although the gains are smaller.

The right time of week is one where the teacher has 30-45 minutes of uninterrupted thinking. End of the working week often fits, before the weekend and before the next round of planning.

What counts as a critical incident

A critical incident is an event that can be called to mind easily and quickly because the teacher remembers it vividly. Two features mark them.

Unexpected

Usually a surprise. The expected events of a week blend together. The unexpected ones stand out.

Significant

They can be positive (a high) or negative (a low). The signal is not “this was good” or “this was bad” but “this stuck with me.”

A short list of typical critical incidents in teaching:

1. A student response that was sharper or weaker than expected
2. A method that worked unexpectedly well or unexpectedly poorly
3. A conversation with a parent, colleague, or principal that did not go as anticipated
4. An emotional reaction that was disproportionate to the trigger
5. A moment when a long-held belief about teaching was confirmed or challenged

Flashcard

What two features mark an event as a critical incident worth analysing?

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Answer

Unexpected and significant

The expected events of a teaching week blend together. The unexpected ones stand out and carry information about a frame, a method, or an assumption that did not match reality. Significance is not “good” or “bad”; it is the event sticking in memory because something underneath it asked for attention.

The CIA process

The method has a defined sequence. Run it on each incident chosen.

Step 1: Think back over the last week

Set aside a quiet time. Run through the week mentally. Note the events that come back vividly.

Step 2: Identify the critical incidents

The events that came back without effort are the candidates. Aim for two or three for the session.

Step 3: Choose the most memorable two or three

Pick the ones with the strongest memory pull. The strength of the memory is itself a signal that the event carries something worth examining.

Step 4: For each incident, work through five questions

Each incident gets the same set of questions.

Question A: Brief description

Write a brief description of the incident. Include:

1. What happened
2. Who was involved
3. Where and when it took place
4. What made the incident critical to you

The “what made it critical” part is important. It is the link between the event and the teacher’s response to it.

Question B: Assumptions confirmed

List the assumptions you have as a practitioner that were confirmed by this incident. What was it about what happened that led you to think those assumptions were accurate and valid?

This question is sometimes harder than it looks. Many teachers can name assumptions that were challenged but struggle to name ones that were confirmed. The confirmed ones often run as background and only become visible when explicitly asked for.

Question C: Assumptions challenged

List the assumptions you have as a practitioner that were challenged by this incident. What was it about what happened that led you to think those assumptions might be inaccurate or invalid?

A challenged assumption is one that the incident contradicts. The teacher believed X; the incident suggests X may not hold. The challenge does not yet prove X is wrong; it raises the question.

Question D: How to check the challenged assumptions

How did you try to check the accuracy of your challenged assumptions? If you could not check them at the time, how could you check them in the future? What sources of evidence could you consult?

This question turns the analysis into action. A challenged assumption that is not checked drifts back into use unchecked. A challenged assumption that is tested gets either confirmed (and held more strongly) or revised (and replaced).

Question E: Different perspectives

What different perspectives could be taken on the incident? As you think about it through the eyes of the other people involved, are there different ways the situation could be seen, or that your behaviour could be interpreted?

This is the empathy question. The teacher imagines the incident from the student’s view, the colleague’s view, the parent’s view. Each viewpoint reveals possibilities the teacher’s own viewpoint missed.

A worked example

A teacher runs CIA at the end of a Friday.

Incident chosen

A student in the back of the class, who normally says nothing, raised her hand and gave the most insightful answer of the week to a difficult question.

Description

The lesson was on educational policy. The question was about whose interests the curriculum serves. The student, who had been quiet for the entire term, raised her hand on this question and answered with a sharp observation about the relationship between curriculum and class.

Assumptions confirmed

The teacher had assumed that the student understood more than she contributed. The incident confirmed this.

Assumptions challenged

The teacher had assumed that quiet students were quiet because they were less engaged or less prepared. The incident challenged this. The student had been engaged the whole term; she had simply not chosen to speak.

Checking the challenged assumption

The teacher decided to design two activities the next week that would let students contribute in writing or in pairs before any whole-class discussion. If quiet students contributed at higher rates in those formats, the challenged assumption would be confirmed as inaccurate.

Different perspectives

From the student’s view, raising her hand had taken courage and the question had finally felt worth answering. From other students’ views, the moment was a minor surprise but did not change much for them. From a colleague’s view (imagined), the moment showed the value of the kind of question being asked, not only the kind of student.

The CIA produced a specific change to next week’s lesson design and a longer-term shift in how the teacher thinks about quiet students.

Flashcard

Why does critical incident analysis ask about both confirmed and challenged assumptions, not just challenged ones?

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Answer

Confirmed assumptions are part of the data and often run unexamined

A teacher who only looks at challenged assumptions misses the assumptions that the week confirmed. Confirmed assumptions still shape practice. Naming them makes them visible and tests whether they should be held as strongly as they have been. Challenged assumptions get the attention; confirmed ones get the deeper grip on practice.

What CIA produces over time

A teacher who runs CIA weekly for a term tends to develop in two areas.

A clearer picture of her own assumptions

Most teachers carry assumptions they cannot articulate. CIA brings them into view. Over weeks, the teacher gets a more accurate inventory of what she has been assuming.

A habit of checking

The fourth question (how to check the challenged assumptions) builds a habit. The teacher learns to design small checks for her own beliefs. Over time, this habit produces practice that is more grounded in evidence and less in untested intuition.

The method is one of the most concrete tools in this guide. It is also one of the most demanding to keep up. The teachers who get the most from it are the ones who stick with it past the first few weeks, when the novelty has worn off and the discipline starts producing the deeper insights.