one and many (plurals)

Adding the -s, hearing the -s, and the handful of words that refuse to play along.

From age 5Cambridge level: Pre-A1 Starters

Age: Ages 5–11
Level: Pre-A1
Skill: Grammar
Format: Teacher guide

The pattern

Saying it: one cat → two cats
Saying no: not one cats
Asking: How many cats?
Short answer: Three cats.

Printable worksheet Presentation (PPT)

Sentences a child can say

Tap any sentence to hear it. Every one uses words from a topic pack you already have.

Mini exercise: choose the right word

Five sentences from this page, each with a word missing. A child taps the word that fits and, once it is right, hears the whole sentence.

one cat, two blank
one box, two blank
one bus, two blank
one foot, two blank
How many blank?

What you will actually hear

The mistakes that come up in every class, and what is behind each one, with a tag on those a first language makes typical.

two childstwo children

A short list of words changes shape instead of adding -s. Teach them as pictures, not as exceptions.

three boxthree boxes

After a hissing sound (s, x, ch, sh) the ending needs its own syllable: box-es.

I have got two cat.I have got two cats.

The number is not enough on its own — English marks it twice, and the ear expects both.

Typical for Arabic and Russian speakers

twenty-one penciltwenty-one pencils

Russian «двадцать один карандаш» and Arabic «⁧واحد وعشرون قلمًا⁩» put a singular noun after 21, and Arabic does it after every number from 11 to 99. English adds the -s after any number above one.

How to teach it

1
Make them hear it before they write it. Hold up one card, then two, and let them catch the extra hiss at the end.
2
The irregulars are a small club: children, feet, teeth, mice, men, women. Six pictures on a wall beat any rule.
3
Count real things. Fingers, chairs, crayons, steps to the door — the number has to be true to be felt.
4
Do not explain the three -s sounds to a five-year-old. Say them correctly often; the ear sorts it out on its own.

Topic packs that pair with this

Same structure, words your class already knows — no new vocabulary needed.

Numbers Animals My body School Fruits

Questions teachers ask

Should I teach the irregular plurals early or late?

Early, but as vocabulary rather than grammar. Children meet children, feet and teeth constantly; teaching them as six known pictures avoids the stage where every plural becomes a guess.

My pupils write the -s but never say it. Does that matter?

Yes, and it is worth a minute a lesson. A silent plural survives into adult English and is one of the most persistent accent markers there is. Clap on the final sound; make it a game rather than a correction.