The Doubling Pond — Irregular Plural Nouns (Grade 2)

About this activity

Foot becomes feet, mouse becomes mice, and child becomes children — but deer and sheep stay exactly the same. At Pearl's Doubling Pond, the child reads a word and taps its correct plural, dodging the tempting lazy '-s' trap, in a free, interactive Grade 2 grammar activity that runs in the browser with no account.

The big idea is that not every plural is made by adding -s, and the wrong choice is exactly that tempting lazy form. When the child sees 'mouse,' the trap answer is 'mouses' and the right answer is 'mice'; for 'deer,' the trap is 'deers' and the right answer is still 'deer.' The child has to know the special plural rather than reach for the default ending, which is the whole point of learning irregular plurals.

It is aligned to Common Core L.2.1.b — forming and using frequently occurring irregular plural nouns. No timer, no score — just calm, playful practice.

What's inside this activity

• Designed for Grade 2 learners (ages about 7–8)
• Common Core strand: Language
• Aligned to Common Core standard L.2.1.b

How to play

Read the question, like "More than one mouse is…?"

Tap the correct plural — mice, not 'mouses.'

Not quite? Try again — there is no timer and no score.

What your child practices

• Form irregular plurals like feet, teeth, geese, men, women, and mice
• Use the special plural 'children' for child
• Recognize words that stay the same, like deer and sheep
• Resist the lazy -s ending when a word changes another way

Learning goals

Form and use frequently occurring irregular plural nouns — the focus of Common Core L.2.1.b

Understand that some nouns change their spelling or stay the same instead of adding -s

Build the plural-noun knowledge that careful writing depends on