Vault seed record

Countable versus uncountable sorter

Sort each word into 'can say a/an' or 'usually no a/an' in everyday English.

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Classification

reviewed-seedapprovedvisual-simulation-mechanicscategory-sorter-roundsorterB1Grammar

Provenance

Kind: human-authored

Source: viral-mechanics-depth

Batch: viral-mechanics-002

Reviewer: content-lead

Updated: 2026-05-20

Instruction and answer

Instruction

Sort the nouns by article behavior.

Correct answer

idea -> Can say a/an; advice -> Usually no a/an; job -> Can say a/an; information -> Usually no a/an

Explanation

Idea and job are countable, so 'an idea' and 'a job' work. Advice and information are normally uncountable in English.

Product use

Surfaces

testdailyfriend-challenge

Source languages

globalrues

Difficulty

medium

Conversion hook

Feels like a quick sorting game that explains a painful grammar pattern.

Review payload

Review notes

Adds a grammar sorter so the mechanic is not only business-register based.

Media prompt

No media prompt attached.

Assets

category-sorting-setsarticle-noun-contexts

Source traps

ru-article-omissionglobal-collocation-transfer

Tags

articlescountable-uncountablesorting

Usage

Tests: articles, grammar-diagnostic

Funnels: none

Challenges: article-sorter

{
  "type": "mapping",
  "pairs": [
    {
      "itemId": "idea",
      "item": "idea",
      "targetId": "countable",
      "target": "Can say a/an"
    },
    {
      "itemId": "advice",
      "item": "advice",
      "targetId": "uncountable",
      "target": "Usually no a/an"
    },
    {
      "itemId": "job",
      "item": "job",
      "targetId": "countable",
      "target": "Can say a/an"
    },
    {
      "itemId": "information",
      "item": "information",
      "targetId": "uncountable",
      "target": "Usually no a/an"
    }
  ]
}