Whistle Valley — Number-Line Track Repair
A storm tore out the train track in Whistle Valley, and the track is a NUMBER LINE! Read each numbered tie and drag it to the exact spot its number belongs — count on from the anchor stations — then send the singing engine chugging across the repaired track. A warm Grade 1 game about counting to 120 on the number line, aligned to Common Core 1.NBT.A.1.
A storm tore out the train track in Whistle Valley, and the track is a NUMBER LINE! Read each numbered tie and drag it to the exact spot its number belongs — count on from the anchor stations — then send the singing engine chugging across the repaired track. A warm Grade 1 game about counting to 120 on the number line, aligned to Common Core 1.NBT.A.1.
About this activity
A storm has torn out the train track in Whistle Valley — and the track is a number line. The child reads each numbered tie and drags it to the exact spot its number belongs, counting on from anchor stations, until the line is whole and the engine can chug across. This free, interactive Grade 1 math activity counts to 120 in the browser with no sign-up.
The number line is what makes counting visual and exact. A tie has to go in its true place, so the child counts on from a known number rather than guessing, and the spacing shows that 60 sits halfway between 40 and 80. The skip-counting rounds — dropping 15, 20, 25 between 10 and 30 — build the same counting patterns that lead toward tens and ones. Distractor ties that are close but wrong mean the child really has to find the right number.
It is aligned to Common Core 1.NBT.A.1 — counting to 120, starting at any number, and reading and representing numbers on the number line. No timer, no score — just calm, playful practice.
What's inside this activity
- Designed for Grade 1 learners (ages about 6–7)
- Common Core strand: Number & Operations in Base Ten
- Aligned to Common Core standard 1.NBT.A.1
How to play
Read the number on each loose tie and look at the anchor stations on the track.
Drag each tie to the exact spot its number belongs, counting on from the anchors.
Not quite? Slide the tie to the right place and try again — there is no timer and no score.
What your child practices
- Placing a number in its exact spot on the number line
- Counting on from an anchor number to find the next ties
- Crossing the tens and going past 100 toward 120
- Skip-counting by fives and tens to fill the gaps
Learning goals
Count to 120 and place numbers on the number line — the focus of Common Core 1.NBT.A.1
Count on from any number instead of starting at one
Build the number-line sense that addition, subtraction, and place value rely on
Frequently asked questions
- What does the Whistle Valley — Number-Line Track Repair activity teach?
- Whistle Valley — Number-Line Track Repair is a free interactive activity for Grade 1, focused on Number & Operations in Base Ten. Children play it right in the browser — no printing, login, or setup required.
- Is Whistle Valley — Number-Line Track Repair free to use?
- Yes. Whistle Valley — Number-Line Track Repair 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 (Number & Operations in Base Ten) and works well for whole-class, small-group, or independent practice.
Practice this standard
See all 1.NBT.A.1 activitiesMore activities to try
- K.NBT.A.1Teen Numbers 11 to 19 — Double Ten Frame Activity
- 1.NBT.B.3Compare Two-Digit Numbers — Greater Than, Less Than, Equal
- 1.NBT.C.5Ten More, Ten Less — Mental Math With Two-Digit Numbers
- 2.NBT.A.3Three Ways to Show a Number
- 3.NBT.A.1The Halfway Harbors — Rounding on a Number Line (Grade 3)
- 2.NBT.A.2Hopper's Lily Hops — Skip-Counting by 5s, 10s & 100s (Grade 2)