MathGrade 2ages 7–8
🧦 Even and odd
A child who insists zero isn't even, or isn't odd either, is treating it as an absence rather than a number — but zero pairs up with nobody left over, which is exactly what makes a number even.
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Download on the App StoreWhat your child learns
- Even = you can make pairs, nobody left over.
- 8: four pairs. Even. 7: three pairs and one alone. Odd.
- Zero: zero pairs, nobody left. Even.
- Even numbers end in 0, 2, 4, 6, 8.
The mistake most kids make here
Zero looks like 'nothing' so it seems not even.
Try one question
Is 8 even or odd?
8
- even
- odd
- not a number
Answer
even — Yes. Exactly four pairs.
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: 8 even, 7 odd, and 0 is even too.
How to help at home
Even and odd are usually taught through pairing: line up a group of objects two by two, and if nobody's left alone, the number is even. Zero rarely gets tested this way because there's nothing to line up, so it feels like an exception.
Practice with small, visible groups first: 8 crackers make four pairs with none left over, so 8 is even. 7 crackers make three pairs with one lonely cracker, so 7 is odd. Once that's automatic, ask: how many pairs can you make with zero crackers? Zero pairs, and — importantly — nobody left over either.
If your child resists calling zero even, ask: "is anyone standing alone, with no partner?" The answer is no, because there's nobody at all — and having nobody left alone is the actual rule for even, not "having a lot of things."
A sign they've got it: they can list even numbers ending in 0, 2, 4, 6, 8 — including a number like 10 or 20 — and confidently include zero itself in that list without hesitating.
Questions parents ask
- Why doesn't my child think zero is even?
- Zero can feel like "nothing" rather than an actual number, so the pairing rule that defines even numbers — no one left over when you pair up — doesn't feel like it applies. But zero technically has zero pairs and zero leftovers, which fits the rule exactly.
- What's the simplest way to explain even and odd?
- Line objects up in pairs. If everyone has a partner, the number is even. If one is left alone, it's odd. This works for every number, including zero and ten.
- Is there a quick trick for checking even or odd without objects?
- Look at the last digit. Numbers ending in 0, 2, 4, 6, or 8 are even; numbers ending in 1, 3, 5, 7, or 9 are odd. This works no matter how big the number is.
- How does Maya teach even and odd numbers?
- Maya has the child physically pair up objects, including testing tricky cases like zero, so the rule comes from watching pairs form rather than from a memorized list.
No card needed. The first lesson is free.
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