Key takeaways
- The Frayer model is a four-square graphic organizer for teaching a single vocabulary word or concept in depth.
- The four quadrants are Definition, Characteristics, Examples, and Non-examples, with the target word in a center oval.
- Non-examples are what set it apart: forcing students to say what a word is *not* exposes misconceptions a plain definition hides.
- It was developed by Dorothy Frayer and colleagues at the University of Wisconsin in 1969 and works from kindergarten through high school.
- Use it before, during, or after teaching a concept — as a pre-assessment, a during-reading tool, or an end-of-unit check.
The Frayer model is a four-square graphic organizer that helps students understand a word or concept, not just recite its definition. Instead of copying a dictionary line, students fill four boxes around a central term: what it means, what its key features are, real examples, and — the part that makes the difference — clear non-examples. The result is a single page that shows whether a student truly gets a concept or has only memorized words about it.
It was developed by Dorothy Frayer and colleagues at the University of Wisconsin in 1969 as a way to build conceptual understanding rather than surface recall. More than fifty years later it is one of the most widely used vocabulary strategies in K–12 classrooms because it is subject-neutral: the same template works for mammal in second-grade science, prime number in fifth-grade math, and irony in high-school English.
The four quadrants of the Frayer model
A Frayer model divides a page into four boxes with the target word in an oval in the middle. Each box does a specific job, and the power comes from doing all four for the same word at once.
Definition
What the word means, ideally in the student's own words rather than copied verbatim. Rewriting the definition is where the thinking starts.
Characteristics
The essential features or facts that are always true of the concept. For 'square': four equal sides, four right angles, a closed shape.
Examples
Real instances of the concept. For 'mammal': dog, whale, human. Concrete cases anchor the abstract definition to something students know.
Non-examples
Things that are close but do NOT fit — the box other organizers skip. For 'mammal': snake, shark, frog. Ruling things out reveals hidden misconceptions.
The original 1969 version labeled two of the boxes essential characteristics and nonessential characteristics. The version you will see most often today swaps the second pair for Examples and Non-examples, which is easier for younger students and makes the misconception-hunting explicit. Both are correct — pick the one that fits your grade level.
The number of new words students are estimated to learn each year, which is why efficient, deep vocabulary routines matter more than copying definitions.
Source: Nagy & Herman (1987), vocabulary research
Frayer model examples by subject
The template does not change from subject to subject — only the word in the middle does. Here are four completed examples you can model for students:
- Science — 'Mammal': Definition: a warm-blooded animal that has hair or fur and feeds its young milk. Characteristics: warm-blooded, breathes air, has a backbone, produces milk. Examples: dog, whale, bat, human. Non-examples: snake (reptile), shark (fish), frog (amphibian).
- Math — 'Prime number': Definition: a whole number greater than 1 with exactly two factors, 1 and itself. Characteristics: greater than 1, exactly two factors, cannot be divided evenly by any other number. Examples: 2, 3, 5, 7, 11. Non-examples: 1 (only one factor), 4, 9, 12 (composite).
- English — 'Metaphor': Definition: a comparison that says one thing is another. Characteristics: no 'like' or 'as', figurative not literal, creates an image. Examples: 'Time is a thief'; 'the classroom was a zoo'. Non-examples: 'brave as a lion' (that is a simile), 'the dog ran fast' (literal).
- Social studies — 'Democracy': Definition: a system where citizens hold power, usually by voting. Characteristics: free elections, majority rule, protected rights, more than one party. Examples: the United States, Canada, France. Non-examples: an absolute monarchy, a one-party dictatorship.
How to use the Frayer model in class
- 1
Pick one high-value word
Choose a concept worth ten minutes — a term that anchors the whole unit, like 'ecosystem' or 'ratio' — not a word students can figure out from context. The Frayer model is a deep dive, so spend it on words that repay the effort.
- 2
Model the first one together
Fill a blank template as a class the first time. Think aloud through each box, especially the non-examples, so students hear the reasoning. Do not assume the four boxes are self-explanatory the first time out.
- 3
Start with examples and non-examples
For younger students, fill the Examples and Non-examples boxes first, then work backward to the definition. Naming what fits and what does not often makes the definition easier to write in their own words.
- 4
Push hard on non-examples
This is where misconceptions surface. If a student lists a whale as a non-example of 'mammal', you have caught a gap you would never have seen from a copied definition. Ask 'why is that a non-example?' to make the thinking visible.
- 5
Have students share and compare
Pair students to compare completed organizers. Disagreements about which examples belong drive exactly the kind of talk that cements a concept. A think-pair-share works well here.
- 6
Keep it as a study tool
Completed Frayer models make excellent review sheets and word-wall entries. Have students revisit and revise them at the end of a unit as their understanding deepens.
Frayer model vs. a plain definition list
| What you compare | Frayer model | Copying definitions |
|---|---|---|
| What students produce | Definition, features, examples, and non-examples | A word and its dictionary meaning |
| Thinking required | High — students categorize and rule things out | Low — students transcribe |
| Catches misconceptions | Yes, through the non-examples box | No — a copied definition hides gaps |
| Best for | Anchor concepts worth a deep dive | Quick reference lists only |
| Reusable as | A study sheet and word-wall card | A list that is rarely revisited |
A few adaptations keep the model fresh. For early grades, use a simpler four-box version: word, a picture, a definition, and a sentence using the word. For English language learners, let students add a translation or a labeled drawing in one quadrant. For review, hand out a Frayer model with one box blank and have students fill the missing piece — a fast formative check. However you adapt it, keep the non-examples box: it is the feature that makes the Frayer model more than a fancy vocabulary list.
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Try the AI worksheet generatorFrequently asked questions
The Frayer model is a four-square graphic organizer for learning a vocabulary word or concept in depth. Students fill four boxes — Definition, Characteristics, Examples, and Non-examples — around the target word in a center oval, which builds real understanding instead of rote memorization.
The four quadrants are Definition (what it means, in the student's own words), Characteristics (essential features), Examples (real instances), and Non-examples (things that are close but do not fit). The original 1969 version used essential and nonessential characteristics for the bottom two boxes.
It was developed by Dorothy Frayer and her colleagues at the University of Wisconsin in 1969 as a strategy for building conceptual understanding rather than surface-level recall of definitions.
It works from kindergarten through high school. Younger students often use a simplified version with a word, picture, definition, and sentence, while older students use the full four-quadrant model for abstract concepts across every subject.
Non-examples force students to say what a concept is not, which exposes misconceptions a copied definition hides. If a student lists a whale as a non-example of 'mammal', you have found a gap you can address immediately.