Teaching self explanation means helping students talk themselves through new material, asking why each step makes sense and how it connects to what they already know. Unlike explaining to others, self explanation is private reasoning aimed at the learner’s own understanding.
Learners who self explain tend to notice gaps and contradictions while studying, rather than discovering them on a test. This article covers what the strategy involves, why it supports learning, which prompts teachers can use and how to move students from guided practice to independent use.
What Self Explanation Looks Like in Practice
Imagine two students studying the same solved algebra problem. The first reads each line and moves on. The second pauses at each step and asks why the solver subtracted three from both sides, then answers that doing so keeps the equation balanced while isolating the variable.
The second student is self explaining. The comments are usually short and informal, spoken quietly or jotted in the margin. They are not meant for a teacher. Their purpose is to make the learner actively connect each new piece of information to a rule, principle or earlier idea.
Self explanation can be applied to worked examples, textbook passages, diagrams, historical sources and even the learner’s own mistakes. In each case, the core move is the same: stopping to generate reasons rather than simply absorbing information.
Because it is generated by the learner, the strategy also reveals personal misunderstandings that a general class explanation might not address.
Why the Strategy Supports Learning
Self explanation works through several cognitive mechanisms. It prompts learners to integrate new information with prior knowledge, which builds richer and more connected memory structures. Connected knowledge is easier to retrieve and to adapt to new problems.
The strategy also helps students repair their mental models. When a self explanation conflicts with something the learner believed, the conflict becomes visible. That moment of noticing is often the starting point for revising a misconception.
It also supports the ability to generalize. By explaining why a step works, students identify the underlying principle rather than memorizing surface features. That principle can then be recognized in problems that look different on the surface.
Research on self explanation has generally found benefits for understanding and transfer, though the size of the benefit depends on the quality of the explanations students produce. Shallow paraphrasing does far less than genuine reasoning about why.
Prompts That Encourage Real Explanation
Students rarely self explain well without guidance. Carefully chosen prompts help them focus on reasons rather than repetition.
Principle Prompts
Principle prompts ask learners to name the rule or concept behind a step. Examples include asking which law of motion explains a result, or which property of numbers allows a rearrangement. These prompts push students to link specific actions to general ideas, which is the heart of transferable understanding.
A teacher might add a short printed prompt beside each step of a physics example, asking which principle applies. Over several lessons, students begin to ask that question on their own when they meet an unfamiliar problem.
Connection Prompts
Connection prompts ask how new information relates to earlier material. A history student might be asked how a new economic policy relates to the unrest described in the previous chapter. These prompts reduce the tendency to treat each lesson as a separate island of facts.
Connection prompts work well at the start of a lesson too. Asking students to explain how today’s topic builds on last week’s helps activate relevant memories before new information arrives, so it has something to attach to.
Anticipation Prompts
Anticipation prompts ask the learner to predict the next step before seeing it, then explain why that step makes sense. Predicting forces active reasoning and makes any mismatch between expectation and reality more noticeable, which in turn signals where understanding needs work.
If the prediction turns out to be wrong, the learner explains what caused the mismatch. That second explanation is often the most valuable moment in the process, since it targets exactly the idea that was misunderstood.
Teaching the Strategy Step by Step
Self explanation is a skill, so it benefits from explicit teaching. A clear sequence helps students learn what good explanations sound like and when to use them.
- Model it aloud: the teacher studies a worked example in front of the class, voicing each why question and answer.
- Contrast quality: show a shallow paraphrase next to a reasoned explanation and discuss the difference.
- Practice with prompts: students work through examples that include printed explanation prompts at key steps.
- Share and refine: pairs compare explanations and improve weak ones together.
- Fade the prompts: gradually remove printed cues so students generate their own questions.
Modeling is especially important. Many students have never heard an expert think through material slowly, and hearing that process makes it easier to imitate.
Short, frequent practice tends to work better than a single long training session, because the habit needs to be applied across many examples.
Using Worked Examples Effectively
Worked examples are a natural partner for self explanation. A worked example shows a full solution, which reduces the burden of searching for a method, and frees mental capacity for understanding why the method works.
Without self explanation, however, worked examples can be read passively. Students may follow each line without noticing the reasoning behind it. Pairing each example with a few explanation prompts turns reading into active study.
Teachers can also present incomplete worked examples, where some steps are left blank. Students fill in the missing step and explain why it belongs there. This gradually shifts responsibility from the example to the learner.
Comparing two worked examples that solve similar problems in different ways is another useful variation. Explaining why both methods work, and when one might be preferable, builds flexible understanding.
Teachers should choose examples carefully. Early examples work best when they are clear and closely related to the lesson, while later ones can vary more so that students learn to recognize the same principle in new forms.
Applying Self Explanation Beyond Math and Science
Self explanation is often discussed with mathematics and science, but it fits many subjects. The key is to identify the reasoning that experts use in each field and to prompt students to make that reasoning explicit.
- Reading: students pause after a paragraph to explain how it connects to the author’s main argument.
- History: learners explain why a source’s author might hold a particular view.
- Writing: students explain why a model essay places its strongest evidence where it does.
- Languages: learners explain why a verb form changes in a given sentence.
In each case, the explanation focuses on reasons and connections, not simply on restating the content. That focus is what separates self explanation from summarizing.
Teachers in different subjects can share prompts, which helps students see the strategy as a general learning tool rather than a math trick.
Short demonstrations in each subject help. When a history teacher models explaining a source aloud, students see that the same habit of asking why applies to evidence and arguments, not only to equations.
Common Obstacles and How to Address Them
Some students resist self explanation because it feels slow. Reading straight through seems more efficient, and the benefits of pausing are not immediately visible. Teachers can address this by showing students how explanations reveal mistakes they would otherwise carry into tests.
Other students produce explanations that are too shallow, such as restating a step without adding a reason. Feedback that asks a follow-up why question, or that highlights a strong example from a classmate, helps raise the quality over time.
Learners with limited prior knowledge may struggle because they lack the principles needed to explain. In those cases, brief direct instruction on the key concepts should come first, with self explanation layered on afterward.
Students who become anxious about being wrong can be reminded that self explanations are private drafts. Their purpose is to reveal gaps, so an incorrect explanation that gets noticed and fixed is a success, not a failure.
Building a Lasting Self Explanation Habit
The long-term goal is for students to self explain without being asked. That requires repeated practice across subjects, gradual removal of prompts and occasional reminders of how the strategy helps.
Students can build the habit by keeping a short list of personal prompts on a bookmark or notebook cover, such as asking why this step works or how this connects to the last lesson. Glancing at the list during study keeps the strategy active.
Teachers can reinforce the habit by occasionally asking students to hand in a sample of their self explanations, giving brief feedback on quality rather than grading for correctness.
Parents can support it at home by asking children to talk through a homework problem aloud. With time and consistent practice, self explanation becomes an ordinary part of how a student studies, and its benefits accumulate across years of learning.