KS3 English · National Curriculum · Grammar & Vocabulary
Mini-Lesson
Grammar & vocabulary
This mini-lesson takes you through the tools writers use: the word classes, how sentences are built, the punctuation that holds them together, Standard English, growing your vocabulary, and how every grammar choice creates an effect.
Make a guess: is watch a noun or a verb?
Mission 1Is watch a noun or a verb?
Mission 2Does its need an apostrophe here?
Mission 3The list of names: is or are?
Work through each screen, answer the questions as you go and collect ⭐ stars. Press Start when you're ready.
Word classes
Every word has a job
A word class tells you the job a word does in a sentence. The same word can even change class depending on how it is used. Here are the eight you need at KS3:
The eight main word classes, each with a job to do.
Noun — a person, place, thing or idea: teacher, London, courage.
Verb — an action or a state of being: sprint, think, was.
Adjective — describes a noun: a rusty gate.
Adverb — tells you more about a verb (how, when, where); many end in -ly: she sang softly.
Pronoun — replaces a noun: they, him, it.
Preposition — shows position or time: before lunch, on the roof.
Conjunction — joins words or clauses: and, but, because.
Determiner — comes before a noun to pin it down: the, a, some, my.
Quick check
Name the word class
?In the sentence "The dog barked loudly at midnight", which word class is loudly?
The core: nouns & verbs
Nouns and verbs do the heavy lifting
Most sentences need a subject (usually a noun or pronoun) and a verb. Commands can leave the subject out: Sit down. Nouns come in useful types:
Common noun — a general thing: city, river.
Proper noun — a specific name, always capitalised: Sheffield, Amara.
Abstract noun — an idea you cannot touch: freedom, fear.
Verbs can be action verbs (leap, whisper) or state verbs (be, seem, know). Swapping a dull verb for a sharp one is one of the fastest ways to improve writing:
Upgrade the verb
❌ She went down the corridor.
✅ She crept down the corridor. → now we feel the tension.
Tip: to test whether a word is a noun, try putting the or a in front of it. To test for a verb, try changing the tense (run → ran).
Mini-game 1
Match the word to its class
Tap a word on the left, then tap its class on the right.
Word
Class
Sentence types
Simple, compound and complex
A clause is a group of words with its own verb. Sentences are built from clauses:
A subordinate clause cannot stand alone — it leans on the main clause.
Simple — one main clause: The storm arrived.
Compound — two main clauses joined by a coordinating conjunction (and, but, or, so): The storm arrived and the lights went out.
Complex — a main clause plus a subordinate clause (using because, although, when, if): Although the storm arrived, we stayed calm.
Why it matters: short simple sentences build tension. Longer complex sentences let you pack in detail. Mixing lengths keeps writing lively.
Quick check
Which type of sentence?
?"When the bell rang, the students cheered." What type of sentence is this?
Mini-game 2
Classify the sentence
Read each sentence and tap whether it is simple, compound or complex.
Mission 1 check
Is watch a noun or a verb?
?Read this sentence: "We park our bikes by the park." How can you tell that the first park is a verb?
Mission 2 of 3
Does its need an apostrophe here?
Make a guess: does its in "The cat licked its paw" need an apostrophe?
Punctuation · apostrophes
The apostrophe has two jobs
Possession shows something belongs; contraction marks missing letters.
Common mistake — its vs it's:it's only ever means it is or it has. its (no apostrophe) means belonging to it. Test: if you can swap in "it is", use the apostrophe. The cat licked its paw.
Quick check
Which is punctuated correctly?
?Which sentence uses the apostrophe correctly?
Punctuation · commas
Commas — and the comma splice
Commas separate items in a list, mark off extra information, and follow an opening subordinate clause:
Lists: We packed apples, cheese, bread and water.
Extra information: My brother, who is twelve, plays chess.
After an opener: Because it was late, we left.
The comma splice (a very common error): you cannot join two complete sentences with only a comma. ❌ It was raining, we stayed inside. ✅ Fix it with a full stop, a conjunction, or a semicolon: It was raining, so we stayed inside.
Punctuation · colons & semicolons
Colons and semicolons
These two are the marks that lift writing from KS3 to top-band:
clause : list / explanationa colon introduces something the first clause has promised
Colon (:) introduces a list or an explanation. The part before it must be a full clause: She had one goal: to win.
Semicolon (;) links two closely related complete sentences: The rain stopped; the sun broke through.
Semicolon vs comma splice
❌ The rain stopped, the sun broke through. (comma splice)
✅ The rain stopped; the sun broke through. (semicolon joins two sentences)
Quick check
Colon or semicolon?
?Which sentence is punctuated correctly?
Punctuation · speech marks
Punctuating speech
Speech marks (also called inverted commas) go around the exact words spoken. The rules:
Open speech marks before the words, close them after.
Punctuation goes inside the closing speech marks.
Start a new line for each new speaker.
Correct vs incorrect
❌ "Where are we going" asked Priya.
✅ "Where are we going?" asked Priya.
✅ Priya asked, "Where are we going?"
Watch out: the comma or question mark belongs inside the speech marks, and you need a comma before the speech begins when the sentence opens with the speaker.
Mission 2 check
Does its need an apostrophe here?
?Sam writes: "The team lost it's best player." Is the apostrophe right?
Mission 3 of 3
The list of names: is or are?
Make a guess: which word must the verb agree with here?
Standard English
Standard English vs dialect & slang
Standard English is the shared grammar and vocabulary used in most writing, in exams and on the news. It is not "better" than a dialect — dialect is right with friends and family — but you must be able to switch into Standard English when the situation calls for it.
Non-standard → Standard English
We was late. → We were late. (agreement)
I done my homework. → I did my homework. (verb form)
I ain't got none. → I haven't got any. (double negative)
He should of gone. → He should have gone. (a spelling mistake: "should've" sounds like "should of")
there / their / they're:there = a place; their = belonging to them; they're = they are. They're putting their bags over there.
Quick check
Correct the sentence
?Which sentence is written in correct Standard English?
Tense & agreement
Keep tense and agreement steady
Tense tells us when something happens: past, present or future. Keep it consistent unless you mean to shift time.
Consistent tense
❌ She walked in and sits down. (past → present, by accident)
✅ She walked in and sat down.
Subject–verb agreement: a singular subject takes a singular verb; a plural subject takes a plural verb.
Agreement
❌ The list of names are long. → ✅ The list of names is long. (the subject is list, which is singular)
Building vocabulary
Prefixes, suffixes & word families
You can unlock new words by breaking them into parts. A prefix goes on the front; a suffix goes on the end; the root is the core meaning.
Suffixes:-ful (full of), -less (without), -ness (a state), -tion (an action or result).
Word family:help → helper, helpful, unhelpful, helplessly.
Etymology basics: many roots come from Latin and Greek. port (Latin: carry) gives transport, portable, export. Knowing the root helps you decode words you've never met.
Quick check
What does the prefix add?
?The prefix in the word rewrite changes the meaning to…
Grammar for effect
Choices create effect
Grammar is not just about being "correct" — writers choose structures to shape how a reader feels.
Short sentence after long ones = impact: The house was silent. Then it moved.
Precise verbs & adjectives paint a clearer picture than vague ones.
Fronting an adverbial shifts emphasis: Slowly, the door opened.
Repetition of a conjunction can build a breathless rhythm: and up, and over, and down.
Same event, different effect
Flat: A man walked in and said something.
Crafted: A stranger strode in. He said nothing. → tense and controlled.
Quick check
Why choose a short sentence?
?A writer follows three long, detailed sentences with a two-word sentence: "It stopped." What is the most likely effect?
Mission 3 check
The list of names: is or are?
?Pick the right verb: "The box of old toys ___ in the loft." Which answer and reason are right?
Your turn — apply it
Spot the word class
✍In "The runner leapt over the hurdle", name the word class of over. (Type one word.)
Hint: it shows the position of the runner in relation to the hurdle.
Recap
The toolkit to remember
Word classes: noun, verb, adjective, adverb, pronoun, preposition, conjunction, determiner.
Sentence types: simple (1 main clause), compound (2 main clauses + and/but/so), complex (main + subordinate).
Apostrophes: possession (dog's) & contraction (don't); its ≠ it's.
Comma splice: never join two sentences with just a comma.
Colon = introduces; semicolon = links two sentences.
Standard English: we/they were (not we was), did (not done), no double negatives; there/their/they're.
Vocabulary: prefix + root + suffix; use roots to decode new words.
Grammar for effect: vary sentence length and choose precise words.
You've covered the key ideas in the KS3 "Grammar and vocabulary" strand. Press Finish to see your score.
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Mini-lesson complete!
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You've worked through Grammar and vocabulary for KS3 English. 🎉