Where brunch, smog, gym and edit came from. A short unit that shows students English is still being built, using words they say every day.
English is still under construction
Students meet vocabulary as a fixed inventory to be learned. Clipping and blending show them it is not: podcast is younger than their teachers, emoji younger than they are.
That framing does more than any single word. A student who believes words are made rather than issued starts noticing how, and noticing is the beginning of caring about vocabulary at all.
Clipping: one word, shortened
Clipping cuts part of a single word and keeps the meaning: gymnasium → gym, telephone → phone, advertisement → ad, influenza → flu, refrigerator → fridge.
Ask students to guess the full forms before you give them. Most will get gym and phone and be genuinely surprised by flu and fridge — the surprise is the lesson, because it shows how completely a clipped form can replace its parent.
Note the spelling drift too: fridge gains a d that refrigerator does not have. English adjusts the spelling to fit its own patterns, which connects straight back to the -dge rule after a short vowel.
Blending: two words, fused
Blending takes parts of two words and fuses them into one: breakfast + lunch = brunch, smoke + fog = smog, motor + hotel = motel, spoon + fork = spork.
These are also called portmanteaus, after a suitcase that opens into two halves — a metaphor worth giving students, since it makes the structure visible.
Then the modern ones, which land hardest because students use them daily without ever having taken them apart: podcast (iPod + broadcast), emoticon (emotion + icon), internet (international + network), camcorder (camera + recorder).
Having students invent their own blends is the rare creative exercise that assesses the concept precisely. A good invention requires understanding both the sound structure and the meaning combination.
Back-formation: the sneaky one
Back-formation makes a new, shorter word by removing what looks like an ending — usually inventing a verb from a noun that never had one.
Editor came first; edit was cut out of it afterwards. Same with donation → donate, burglar → burgle, television → televise.
This is the hardest of the three and the most interesting, because the ‘ending’ that gets removed was never an ending at all. It is worth teaching to grades 5 and 6 as an example of how language change follows patterns even when the pattern is a misreading.
Where students get stuck
Clipping and blending get conflated. The check is how many source words there are: clipping shortens one, blending fuses two. Ask that question every time and the confusion resolves.
Compounds get called blends. Sunflower is a compound — both whole words survive. Brunch is a blend — both are cut. The difference is whether anything was lost.
Back-formation feels like a trick. It is genuinely counterintuitive; give it its own day rather than squeezing it into the same lesson.