Build Words with Endings — Reading -s, -ed, and -ing
A word can change when you add an ending. Add -s to make more than one (cat becomes cats), -ed to tell what already happened (play becomes played), and -ing to tell what is happening now (jump becomes jumping). Read the base word, listen with Hear it, and tap the right ending to build the word. Take your time; there is no timer and no score. Aligned to Common Core RF.1.3.f — reading words with inflectional endings.
A word can change when you add an ending. Add -s to make more than one (cat becomes cats), -ed to tell what already happened (play becomes played), and -ing to tell what is happening now (jump becomes jumping). Read the base word, listen with Hear it, and tap the right ending to build the word. Take your time; there is no timer and no score. Aligned to Common Core RF.1.3.f — reading words with inflectional endings.
About this activity
This free, interactive reading activity gives children hands-on practice sounding out and building words. It plays right in the browser on tablets, phones, and classroom computers, with nothing to install and no account to set up.
It is aligned to Common Core RF.1.3.F in the Reading: Foundational Skills strand. Each word is checked for an accurate, child-safe break, and feedback is gentle and immediate — there is no timer and no score.
What's inside this activity
- Designed for Grade 1 learners (ages about 5 to 9)
- Common Core strand: Reading: Foundational Skills
- Aligned to Common Core standard RF.1.3.F
How to play
Children look at the picture or hear the word, then read the prompt.
They tap the sounds or syllables in order to build the word.
A friendly check reads the finished word aloud and invites another try when needed.
What your child practices
- Breaking words into sounds or syllables and blending them back together
- Matching letters and letter groups to the sounds they make
- Building short, decodable words step by step
- Hearing and saying each part of a word in order
Learning goals
Blend sounds and syllables to read and build simple words.
Connect spoken sounds to written letters — the core of Common Core RF.1.3.F.
Grow the decoding skills that confident, independent reading is built on.
Frequently asked questions
- What does the Build Words with Endings — Reading -s, -ed, and -ing activity teach?
- Build Words with Endings — Reading -s, -ed, and -ing is a free interactive activity for Grade 1, focused on Reading: Foundational Skills. Children play it right in the browser — no printing, login, or setup required.
- Is Build Words with Endings — Reading -s, -ed, and -ing free to use?
- Yes. Build Words with Endings — Reading -s, -ed, and -ing is completely free, with no signup and no paywall, on any tablet, laptop, or classroom whiteboard.
- Which ages is this activity for?
- It is designed for Grade 1 (Reading: Foundational Skills) and works well for whole-class, small-group, or independent practice.
Practice this standard
See all RF.1.3.F activitiesMore activities to try
- RF.K.3.cRead Common Sight Words — Hear It, Tap It (Kindergarten)
- RF.K.3.cTell the Words Apart — Hear It, Spot the Right One (Kindergarten)
- RF.K.1.dMatch Uppercase and Lowercase Letters
- RF.K.3.aBeginning Sounds — Match the First Letter Sound
- RF.K.2.cBlend Onset and Rime — Listen and Find the Word
- RF.K.3Read the Word, Tap the Picture — Decoding CVC Words