Assessment for Learning: Formative Strategies That Actually Change Your Teaching

Formative assessment is one of the most researched instructional strategies in education — and one of the most misunderstood. The research is clear that it works. The confusion is about what "it" actually is.

Formative assessment is not a test you give in the middle of a unit. It's not a quiz you grade. It's not any specific tool or activity. Formative assessment is the ongoing process of collecting evidence about student learning and using it to adjust what you do next. The tool matters less than what you do with the information.

The Definition That Actually Matters

Dylan Wiliam's framework is the most useful: formative assessment is "assessment for learning" rather than "assessment of learning." Summative assessment (tests, final projects, grades) tells you what happened. Formative assessment tells you what to do next.

For formative assessment to work, it has to actually change something — either what you teach, how you teach it, or what students do next. If you collect exit tickets, look at them, and then teach the same lesson the next day anyway, you did grading, not formative assessment.

High-Yield Formative Strategies

Exit tickets, used well. An exit ticket is only formative if you read every one and sort them. Common sorting approach: three piles — got it, almost, not yet. Instruction the next day is shaped by what those piles look like. If 80% of students are in the "not yet" pile, you reteach. If 20% are struggling, you design a small-group pullout while the rest move forward.

Strategic questioning. Cold calling doesn't give you good data because students know whether they know the answer. Strategies that work better: randomized calling (sticks with names drawn randomly), whiteboards or response cards (everyone responds at once), or think-pair-share with accountability (you call on the pair to report, not volunteer responses).

Observation during practice. Circulating while students work is formative assessment — if you're actually looking at work, not just maintaining order. Have a clipboard or tablet and jot down what you see: who has a conceptual error, who's using the right procedure with wrong understanding, who's ready to move on.

Hinge questions. A hinge question is designed so that the wrong answers reveal specific misconceptions. If a student answers B, they have this misunderstanding; if they answer C, they have that one. Design these questions intentionally for moments in a lesson when students need to have understood something before you can move forward.

Making Feedback Formative

Feedback is the student-facing piece of formative assessment. For feedback to be formative, it needs to be specific enough to act on and timely enough to matter.

"Good work" is not formative feedback. "You understood the main idea but your evidence in paragraph two doesn't connect to your claim — try restating your claim in that paragraph and see if the evidence supports it" is formative feedback.

The fastest feedback loop is verbal, in-the-moment feedback during practice. Written feedback is only useful if students read it and do something with it. Build revision time into your schedule so written feedback has somewhere to go.

Student-Led Formative Assessment

Students can and should be doing formative assessment of their own learning. Self-assessment is under-used because it requires trust in students' honesty and accuracy, which develops over time with practice.

Traffic light self-assessment: students rate their understanding red (confused), yellow (partial), or green (got it). This takes thirty seconds and tells you who needs help.

Learning targets on desks: post the daily learning target and ask students to check off when they think they've met it. Revisit at the end of class. Where students think they've met it and haven't, you learn something important about metacognitive gaps.

Peer feedback protocols: structured peer response (two stars, one wish; or claim-support-question) builds assessment thinking in students while also multiplying the feedback you couldn't deliver yourself.

What Formative Assessment Looks Like Over Time

Good formative assessment practice isn't a set of activities you add to your lessons. It becomes a habit of mind: constant attention to the gap between where students are and where you need them to be, combined with willingness to change course when the evidence warrants it.

The teachers who do formative assessment well aren't necessarily using more tools. They're asking better questions and actually listening to the answers.