Activation¶

Strategy · All strategies
Evidence · 2 claims (1 for, 1 mixed) · 5 studies (3 causal, 1 quant-synthesis, 1 review), q2–q3 · 1 of 5 report an effect size

Description¶

Activation is a pre-instructional strategy that prompts learners to retrieve and articulate relevant prior knowledge before new material is presented. It can be carried out through recall questions, brainstorming, Analogies, Advance Organizers, prediction tasks, or brief diagnostic quizzes. The goal is to bring existing schemas into working memory so incoming information can be connected to them rather than encoded in isolation.

Design Implications¶

Activation works because new knowledge is stored in relation to existing knowledge; material that connects to an activated schema is comprehended and retained better than the same material presented cold Prior knowledge activation improves learning outcomes. [+S]. The activation must be relevant — surfacing knowledge that maps onto the new content — and learners must be prompted to elaborate on what they retrieve, not merely mention it. Activation also serves a diagnostic function: it exposes misconceptions and gaps the instructor can address before they interfere with new learning [~M].

Context¶

Requirements¶

• Knowledge of what learners already know that is relevant to the target content
• A prompt that requires retrieval and some elaboration (writing, discussing, predicting), not just passive exposure
• Time to process the activation activity before new material begins
• A plan for responding to what surfaces — misconceptions and gaps must be addressed, not ignored

Constraints¶

• Activating irrelevant or tangential prior knowledge can impair comprehension by loading working memory with unhelpful associations [~M]
• Activation of flawed or misconceived knowledge without correction can entrench errors; high-confidence errors are especially resistant to revision High-confidence errors improve retention only when corrected. [~M]
• For learners with little relevant prior knowledge, activation prompts can frustrate rather than prepare; provide the missing background instead [~S]
• Overly long or elaborate activation activities consume time and attention better spent on the new material itself [-W]

Implementation Variability¶

• Recall prompts: open questions ("What do you already know about…?") before a unit
• Prediction tasks: learners predict outcomes of a demonstration or experiment, then compare with results
• Analogical activation: mapping a familiar domain onto the new one (Analogies and Prior Knowledge Activation)
• Advance organizers: expository or comparative text presented before the material (Advance Organizers)
• Diagnostic pre-questions: brief quizzes that both retrieve and reveal gaps

Target Learners¶

• Learners with moderate prior knowledge benefit most — they have something to activate but have not yet organized it Prior knowledge activation improves learning outcomes. [+S]
• Learners with misconceptions, for whom activation makes faulty schemas visible and correctable [~M]
• Complete novices benefit less from retrieval-based activation and need background-building instead [~S]

Target Learning Goals¶

• Conceptual understanding: integrating new concepts with existing knowledge structures
• Comprehension of complex text or expository material
• Misconception diagnosis and conceptual change

Instructions¶

1. Identify the prior knowledge the new material depends on (concepts, experiences, or procedures).
2. Choose an activation format — recall question, prediction, analogy, or Advance Organizers — that targets that knowledge.
3. Prompt learners to retrieve and elaborate: write, discuss, or explain, not just recall (Class Discussion).
4. Surface and address misconceptions before presenting new content; correct errors explicitly.
5. Explicitly connect the activated knowledge to the new material as it is presented, naming the links.

Related Strategies¶

• Activating Prior Knowledge — the most common naming of this strategy in K-12 practice
• Analogies — activation through mapping from a familiar domain
• Advance Organizers — expository activation via introductory structure
• Check context familiarity by asking the class to share what they know about a problem's context before working on it

Examples¶

• Predict-Observe-Explain (POE) in physics teaching: students predict what a demonstration will show, commit to a prediction, observe, and reconcile discrepancies — activating (and exposing) intuitive misconceptions before formal explanation.
• KWL charts — learners record what they Know, what they Want to know, and later what they Learned; the K and W columns are an activation routine.
• Case opening in problem-based curricula (e.g., Maastricht University PBL): students brainstorm what they already know about a case before self-directed study, a structured activation phase built into the tutorial cycle.

Key Sources¶

• Ausubel, D. P. (1968). Educational psychology: A cognitive view. Holt, Rinehart & Winston.
• Bransford, J. D., & Johnson, M. K. (1972). Contextual prerequisites for understanding: Some investigations of comprehension and recall. Journal of Verbal Learning and Verbal Behavior, 11(6), 717–726. doi:10.1016/s0022-5371(72)80006-9
• Simonsmeier, B. A., Flaig, M., Deiglmayr, A., Schalk, L., & Schneider, M. (2022). Domain-specific prior knowledge and learning: A meta-analysis. Educational Psychologist, 57(1), 31–54. doi:10.1080/00461520.2021.1939700
• Pressley, M., Wood, E., Woloshyn, V. E., Martin, V., King, A., & Menke, D. (1992). Encouraging mindful use of prior knowledge: Attempting to construct explanatory answers facilitates learning. Educational Psychologist, 27(1), 91–109. doi:10.1207/s15326985ep2701_7