Formative Assessment for Understanding

Definition

Formative assessment uses ongoing feedback to improve teaching and learning, contrasting with summative assessment (measuring final achievement). Formative assessment that focuses on understanding—rather than memory for procedures or facts—reveals students' reasoning and enables revision while learning is still underway. Effective formative assessment is continuous but unobtrusive, informs instructional decisions, and helps students develop self-assessment skills.

In the Book

The NRC report distinguishes formative assessment ("sources of feedback to improve teaching and learning") from summative assessment ("measures what students have learned at the end"). It emphasizes that feedback is "extremely important" for learning, citing evidence from studies of adaptive expertise, transfer, and development. However, the book notes that in many classrooms, feedback comes primarily through grades on tests and assignments—summative assessments that arrive after instruction has moved on, giving students no opportunity to revise their thinking.

The book describes effective formative assessment as making students' thinking visible through discussions, papers, or performances, then providing feedback focused on understanding. Teachers must continually assess students' conceptual understanding, not just accuracy: "Assessments that emphasize understanding do not necessarily require elaborate procedures. Even multiple-choice tests can be organized in ways that assess understanding." An example compares students' abilities to recognize whether physics problems require different solution approaches: novices match problems by surface features, while students learning with understanding recognize the underlying principles that determine solutions.

The report also describes portfolio assessments and self-assessment practices that help students "assess their own work, as well as the work of their peers, in order to help everyone learn more effectively." This supports metacognition—students learning to monitor and regulate their own understanding.

Why It Matters

This concept explains a systemic failure in many educational systems: heavy reliance on summative assessment (grades, tests) that arrives too late to guide revision. Formative assessment redirects feedback to serve learning rather than just measurement. Beyond education, the principle applies to any complex skill acquisition: frequent feedback focused on understanding performance (not just results) accelerates learning and enables correction of misconceptions before they solidify. In organizational settings, this suggests that periodic performance reviews miss opportunities for learning; more frequent, understanding-focused feedback would support continuous improvement. The concept also highlights why self-assessment matters: people who can evaluate their own understanding develop the independence to continue learning without external validation.