Equal groups and arrays
An array is a picture of a multiplication. It is also a picture of a rectangle.
What this skill is
An array shows multiplication as rows and columns. It is the same object as the area model and the same object as a partial-products box, which is why it is worth reusing for years rather than replacing.
Three ways to teach it at home
- Build it with anything — buttons, blocks, a muffin tin. Rows and columns.
- Say both facts from the same array: three rows of five, and five columns of three.
- Keep the array. It becomes the area model, and then partial products, and then algebra. Same picture for years.
Where this sits in the ladder
Comes after
Opens next
Questions people actually ask
What grade is "equal groups and arrays"?
It sits in grade 2 in most sequences, and it is aligned to 3.OA.A.1. In Ladderbug it opens once add and subtract within 20 is solid — grade labels are a rough guide, and readiness is what actually matters.
Is this game free?
Yes. This page needs no account, no email and no card, and there are no advertisements. It saves progress in your own browser.
This is one rung of 82.
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