Sorting into categories
Classify objects into given categories, count the number in each category, and sort the categories by count
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Sorting puts things into groups that share a rule. After sorting, we count each group and compare the counts with most and fewest.
Spend about 15 minutes sorting shapes by type, counting, and comparing groups.
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Illustrative Mathematics · Practice link — not the full lesson
Sort and Count I
Before you open · source notes
Sort-and-count supports sorting into categories. Not every mean or median.
Free, no sign-in. A teacher solution is on the same page, so use the student view with your child.
Before you openAsk the learner to sort objects into categories and count how many are in each.
Opening this link does not save learning or assess mastery.
Source, access and review notes
Public Illustrative Mathematics task page. The .html address responds HTTP 308 to this URL. An anonymous GET of this URL on 2026-11-12 returned HTTP 200 with no login or payment prompt. Where a teacher solution is present, it is on the same page as the student task; this check did not find a separate locked student view. An adult can use the student view section and should not read a solution aloud. Advertising was not observed in the fetched HTML text; that is not a browser, device, or ad-free guarantee. This is a paper or discussion task, not an automatically marked interactive game. Opening the link does not save practice or assess mastery. Diagrams on the page use missing or filename-only alt text, so they are not an accessible image equivalent. Accessibility still depends on an adult describing the picture.
Illustrative Mathematics. “Sort and Count I.” Licensed CC BY-NC-SA 4.0. External task; Gakuva does not copy, host, embed, or redistribute it.
CC BY-NC-SA 4.0 — link only
Check understanding
- Sort a set of shapes by colour and count how many in each group
- Sort objects by size (big/small) and state how many in each category
- Identify which category has the most/fewest after sorting and counting
“Can your child sort a pile of objects — like buttons, coins, or toy animals — into groups and count how many are in each group?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Data & Statistics
- Age range
- Ages 5–7
Standards