Three steps to read a ruler
Measuring looks simple, but it has three separate steps and children often miss one. The game says them the same way every time:
- Start at zero. The thing starts at 0.
- Find the end. A dashed line drops from the end of the thing to the ruler.
- Read the number. "The pencil is 4 centimeters long."
Five levels
- How long is it? (कितना लंबा है?). Read the number where the thing ends.
- Make it this long (इतना लंबा बनाओ). "Make the ribbon 4 centimeters long." Your child taps the 4 and the ribbon grows to it.
- Longer or shorter? (लंबा या छोटा?). Two things on one ruler. Which is longer?
- Centimeters or meters? (सेंटीमीटर या मीटर?). A small ruler for a pencil, a long tape for a bus. One meter is 100 centimeters.
- Not from zero (शून्य से नहीं). The thing starts at 2 and ends at 5. It is not 5 long. Your child counts the steps: 1, 2, 3.
The ruler starts short, 0 to 5, and grows to 0 to 10 after a round done alone. The ruler on the screen is a picture, so its centimeters are not real size. Use a real ruler alongside it.
Built for children with ADHD, autism and late speech
- No reading and no speaking needed. Every line is spoken, in English or Hindi, and every answer is a tap.
- Only what matters is on screen. One ruler, one or two things, and two or three numbers to choose from.
- Doing, not only looking. In level two your child makes the length themselves.
- No timers, no scores, no lives. A wrong tap gets "Let's look again" and the answer is shown.
- Calm mode removes movement. No ads, no account, no tracking.
Tips for parents and teachers
More on this in our guide: learning games for kids with ADHD and autism.
Common questions
What age is Measure It! for?
Ages 5 to 8, including children with ADHD, autism or late speech. Nothing has to be read or said aloud. Your child should know the numbers 0 to 10 first; the Number Line game is good practice for that.
How do I teach my child to read a ruler?
Three steps, said the same way each time: start at zero, find where the thing ends, read that number. Begin with a short ruler from 0 to 5 and whole numbers only. The game teaches exactly these steps and then asks your child to do them alone.
Why does my child get the wrong answer when the object does not start at zero?
Because they read the number at the end instead of counting the length. It is one of the most common mistakes in early measuring. The last level, "Not from zero", teaches counting the steps between the start and the end.
Does it teach centimeters and meters?
Yes. All measuring is in centimeters, and one level asks whether a thing should be measured in centimeters (small things, such as a pencil) or in meters (big things, such as a bus or a door). It does not use inches.
Is the ruler on the screen real size?
No. It is a picture of a ruler, and its size changes with your screen. Use it to learn how a ruler works, and use a real ruler to measure real things.
Does it work in Hindi?
Yes. Tap हिंदी and every sentence is spoken and shown in Hindi, for example "पेंसिल कितनी लंबी है?". It uses your device's Hindi voice.
Is it free?
Yes. No ads, no account and no email. Progress is saved only in this browser on this device.
Next: Tell the TimeRead a clock, one hand at a time.