Help learners distinguish a concept from its near misses, rather than memorising a definition.
A change in form or state that does not produce a new substance.
The substance stays the same. Its shape or state may change.
Melting ice · cutting paper · crushing chalk
Burning paper · rusting iron
Meaning: the substance remains the same. Features: a change in shape or state; no new substance. Examples: ice melting, paper being cut. Non-examples: paper burning, iron rusting.
Choose one concept and two examples that reveal its boundaries. Prepare four spaces: meaning, features, examples and non-examples.
Start with an example: show ice melting and ask what changes and what stays the same.
Build a student-friendly meaning together: a physical change changes form or state without making a new substance.
Pairs sort melting ice, dissolving salt, burning paper and rusting iron. Ask them to explain a difficult choice.
Complete the four spaces, then test the meaning against a fresh case.
Remove the four-box organiser next time. Ask learners to explain the concept and reject a near miss in two sentences.
Keep the subject challenge. Offer one model, visual or language prompt where needed, then check a fresh independent response.
Select three useful concepts from the next lesson. Show each word in a meaningful subject sentence.
Model a Frayer organiser for one concept. Ask learners to explain why each example belongs and each non-example does not.
Pairs complete the other concepts, using their existing knowledge and a home language where useful.
Give each learner a new case: crushing a piece of chalk. Ask for a decision and a reason referring to the substance. A correct label without a reason is not enough.
Give each learner a new case: crushing a piece of chalk. Ask for a decision and a reason referring to the substance. A correct label without a reason is not enough.
Adapt these prompts to the task and your learners.
Let’s look closely at this word. What makes it important?
How would you explain this word to someone who has not seen it before?
Which feature makes this an example? What rules the non-example out?
Explain the concept in your own words, then test it with a new example.
Maths: compare rectangles with non-rectangular parallelograms; separate necessary features from typical appearances.
Humanities: distinguish migration from tourism using duration and purpose, while discussing cases that need more information.
Use a small word bank, visuals and partner rehearsal when needed. Extend with precise explanations and qualifications. Judge the support from the response to this task.
Keep the strategy. Change the subject.
Adapt the content to your curriculum. These responses model the language and thinking to look for.
Sort melting ice, crushing chalk and rusting iron using a Frayer organiser for physical change.
A physical change does not form a new substance. Melting ice is an example; rusting iron is not.
Ask why cutting paper and burning paper belong in different boxes.
Build an organiser for a primary source, using a diary written during an event and a later textbook account.
The diary is a primary source for the writer’s experience. It may still be incomplete or biased.
Ask which question the diary can help answer and which it cannot.
Use metaphor as the central concept. Compare “the classroom was a zoo” with “the classroom was like a zoo”.
The first is a metaphor; the second is a simile because it makes the comparison using “like”.
Give a fresh sentence and ask for a classification with a reason.
Build the concept of a prime number with 2, 3, 9 and 1 as test cases.
A prime number is a whole number greater than 1 with exactly two positive factors. 2 is prime; 9 is not.
Check why 1 is a non-example and 2 is the only even prime.