MathGrade 1ages 6–7
🎀 Long and short
A thick, chunky object can look "bigger" overall, so a child comparing length may call the thicker one "longer" even when a thinner one actually reaches farther.
Try this lesson freeNo card needed. The first lesson is free.
Download on the App StoreWhat your child learns
- Longer means the end reaches farther.
- Put start against start, then look at the end.
- Thickness and colour do not change length.
- A thin ribbon can still be the long one.
The mistake most kids make here
A thick ribbon looks longer even when it is short.
Try one question
Longer
- the blue
- the red
- the same
Answer
the red — Yes. It reaches farther.
How Maya teaches it
Your child tells Maya what they did in class. She teaches this topic at her desk, asks questions with tappable answers, and when the answer is wrong she explains why that answer was tempting instead of saying “try again”. She remembers what did not land and comes back to it.
Your child has it when they can: Two ribbons — say which is longer, after lining them up.
How to help at home
Length is only about how far something reaches from end to end — thickness, color, and puffiness don't count, but they're very good at grabbing a young child's attention first.
Find two ribbons, scarves, or strips of paper — one thick and short, one thin and long. Lay them side by side with both starting edges lined up exactly, and ask which one's far end reaches farther.
If your child picks the thick one because it "looks bigger", say: "let's line up the starting ends and just look at where each one finishes — the end that reaches farthest is the longer one, no matter how thick it is."
A sign they've got it: they automatically line up the starting edges of two objects before comparing them, instead of eyeballing which one looks larger overall.
Questions parents ask
- Why does my child think the thicker ribbon is longer?
- Thickness adds to how much space something visually takes up, which young children can mix up with length. Lining up the starting ends and comparing only the far ends removes the thickness from the comparison.
- What household objects work well for practicing this?
- Ribbons, scarves, shoelaces, strips of paper, or pencils of different thicknesses all work — anything where a thick, short item can be placed next to a thin, long one.
- Do I need a ruler for this at this age?
- Not yet — lining objects up end to end and comparing directly builds the concept of length before measurement units matter. A ruler is worth introducing once "longer means the end reaches farther" is solid.
- How does Maya teach comparing length?
- Maya lines objects up start to start and has the child judge only where the far end lands, deliberately mixing thick-short and thin-long pairs so thickness stops being a shortcut for length.
No card needed. The first lesson is free.
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