B. Foundations of Language · Reading Longer Words and Sentences

Growing Vocabulary: Clues, Word Families and Words That Look Alike

B2.4 B2.3 A3About 40 minutes

Learning goals

I can use context clues and word parts together to figure out a new word.
I can find words in the same word family and use them to understand new words.
I can read homographs the right way by using the sentence.
I can tell homophones apart by their spelling and meaning.
I can learn and use new words from math, science and social studies.

Words to know

vocabulary
All the words you know and use.

context
The words and sentences around a word. They give clues about its meaning.

word family
A group of words built from the same base, like play, player, playful and replay.

homograph
Words that are spelled the same but have different meanings, and sometimes different sounds, like wind (air) and wind (turn).

homophone
Words that sound the same but have different spellings and meanings, like two, too and to.

glossary
A small dictionary at the back of a book. It explains the special words in that book.

Remember from Grade 2

In Grade 2 you became a word detective. You used context clues, synonyms and antonyms, and multiple-meaning words (like bark and bat), and you learned words from other subjects.

In Grade 3, you will combine your clue tools, explore word families, and meet words that look alike or sound alike but mean different things.

The new word plan

When you meet a word you don't know:

Read around it. Look for context clues in the sentence and the sentences nearby.
Look inside it. Find a prefix, suffix or base word you know.
Make a guess about the meaning.
Check: put your meaning in place of the word. Does the sentence make sense?
Still stuck? Look in the glossary, a dictionary, or ask someone.

Worked example

Let's use context and word parts together

Read: The old bridge was unstable, so the town closed it until workers could make it strong again.

What does unstable mean?

Look inside it: un- means not. The base is stable. Hmm, I'm not sure what stable means here. (A horse stable doesn't fit.)
Read around it: the town closed the bridge until workers could make it strong again. So it was not strong. It might wobble or fall.
Guess: stable must mean steady and strong. So unstable means not steady.
Check: The old bridge was not steady, so the town closed it. ✅ Makes sense.

unstable means not steady, not safe to stand on. Word parts + context clues together solved it!

Word families

Words that share a base are like a family. If you know one, you have a head start on the others.

Base	Family members
play	player, playful, replay, playground, playing
act	actor, action, active, react
light	sunlight, lighthouse, lightly, lighten, flashlight
sign	signal, signature, design (the g is silent in sign and design, but you hear it in signal and signature)

Word families share a base

A word family grows from one base word. Every word on the branches has play inside it.

Families help with sound, too

Sometimes a letter is silent in one family member but you can hear it in another. sign has a silent g, but you can hear the g in signal. That's why the g is in sign! Spelling often shows meaning, not only sound.

Homographs: same spelling, different word

Homographs look exactly the same but are different words. Some are also said differently. The sentence tells you which one it is.

The wind blew the leaves. (wind = moving air, short i)
Please wind the string around the stick. (wind = turn, long i)
I read a book every night. (now: "reed")
Yesterday I read a comic. (already happened: "red")
She had a tear on her cheek. (from crying, rhymes with ear)
Don't tear the paper. (rip, rhymes with bear)
Please close the door. (shut, rhymes with nose)
The store is close to my house. (near, rhymes with dose)

Worked example

Let's read a homograph

Read: The singer took a bow after the show, and her hair had a big red bow.

The word bow appears twice. It looks the same both times.
First bow: the singer took a bow after the show. That's bending forward to say thank you. It rhymes with cow.
Second bow: in her hair. That's a ribbon tied in loops. It rhymes with snow.
The context told you how to say each one.

The first bow rhymes with cow (bend). The second bow rhymes with snow (ribbon).

bow is a homograph: the same spelling makes two different words. The sentence tells you which one you are reading.

Homophones: same sound, different spelling

Homophones sound the same but are spelled differently and mean different things. When you read, the spelling tells you which meaning.

to (towards), two (2), too (also, or very)
there (a place), their (belongs to them), they're (they are)
night (dark time), knight (a soldier in armour long ago)
flour (for baking), flower (a plant)
bear (an animal), bare (nothing on it)

Just for fun

Why don't bears ever wear shoes?

They like to walk around in bare feet! (bear and bare are homophones.)

Words from other subjects

Each subject has its own words. Learning them helps you understand what you read in math, science and social studies.

Subject	Word	Meaning
Math	array	Objects lined up in equal rows and columns, like eggs in a carton
Math	fraction	A number that shows part of a whole, like one half
Science	force	A push or a pull
Science	germinate	When a seed starts to grow
Social studies	municipality	A city, town or township with its own local government

Subject words

Words from Indigenous languages

Some English words used in Canada come from the languages of First Nations and Inuit, who have lived on this land since long before English or French was spoken here.

caribou comes from the Mi'kmaw word qalipu.
toboggan comes from a Mi'kmaw word for a sled.
igloo comes from the Inuktitut word iglu, which means house.

These words remind us that the languages of First Nations, Métis and Inuit peoples are part of how we talk in Canada every day.

Hands-on activity

Word family tree

You need: a big piece of paper, markers, and a book, magazine or flyer.

Draw a tree with a trunk and several branches.
Write a base word on the trunk, like help, play, care or paint.
On each branch, write a family member: add prefixes and suffixes (helper, helpful, helpless, unhelpful).
For each word, say what it means and use it in a sentence.
Bonus: find one homograph or homophone in your book and show your grown-up how the sentence helped you.

Your turn

Read: The puppy was inseparable from its blanket. It carried the blanket everywhere. What does inseparable mean? Which clues did you use?

Name three words in the play word family.

Read the sentence and say how wind sounds: Wind the yarn into a ball.

Read: Yesterday I read about owls. How do you say read here?

Pick the right homophone: I have ___ mittens. (to, two, too)

What is a force in science?

Which word comes from the Inuktitut word for house?

More practice: warm-up

What is a homophone?

What is a glossary?

Pick the right word: A ___ (bear / bare) caught a fish.

Which word is in the act family: actor or attic?

What does germinate mean?

More practice: on your own

Read: She wiped away a tear. and Don't tear the map. How is tear said in each?

Pick the right word: The kids put on ___ (there / their / they're) boots.

Read: The farmer made the field fertile by adding compost, and soon the crops grew tall. What might fertile mean?

Why is there a g in sign if we can't hear it?

Use array in a sentence about something at home.

Challenge

Read: We live close to the lake, so we always close the windows when it storms. How do you say each close, and what does each mean?

Build three words from the base light and explain one.

Write one sentence that uses to, two and too correctly.

Check your understanding

Quiz

What is the best way to figure out a new word?

Which words are a word family?

In The wind was strong, wind rhymes with:

Which sentence uses the right homophone?

A municipality is:

What does unstable mean in The ladder was unstable, so Dad held it?

For parents and teachers

Big idea: Grade 3 students build vocabulary by combining context clues with morphology (word parts and word families) (B2.4, B2.3). They learn words from other subjects and notice homographs (whose pronunciation depends on context) and homophones. The lesson also connects to Strand A by recognizing words that come from First Nations and Inuit languages.

How to help at home:

When your child asks what a word means, first ask: "What clues can you find?" Then confirm.
Point out homographs in real reading (live, read, wind, close) and celebrate when your child self-corrects.
Use subject words from school at home: "How many cups in this muffin tray array?"

Common difficulties:

Using only one clue. The best guesses come from both the word and the sentence.
Reading homographs the first way they learned. Encourage rereading the sentence: "Does that make sense? Try it the other way."
Mixing up there / their / they're. This matters for writing too, which is practised in the writing unit.