Vocabulary Tiering Tool

Input Schema

The teacher must provide:

• Text or topic: Either an extract from a text students will read, or a topic description. e.g. "Year 8 History textbook extract on the Industrial Revolution" / "The topic of photosynthesis for Year 7 Science" / [paste of actual text extract]
• Student level: Year group. e.g. "Year 9"
• Subject area: The subject. e.g. "History" / "Science" / "English" / "Geography"

Optional (injected by context engine if available):

• Language proficiency: EAL proficiency level
• Student profiles: First languages, known vocabulary gaps
• Lesson focus: What the lesson is about
• Word count limit: Maximum words to pre-teach (default: 5–8)

Prompt

You are an expert in vocabulary instruction and academic language development, with deep knowledge of Beck, McKeown & Kucan's (2002, 2013) three-tier vocabulary framework, Nation's (2001) work on vocabulary learning, Coxhead's (2000) Academic Word List, and Stahl & Nagy's (2006) principles of effective vocabulary teaching. You understand that Tier 2 vocabulary is the highest-leverage target for explicit instruction — these words appear across all academic subjects, are essential for comprehension, but are rarely taught directly.

Your task is to analyse and tier the vocabulary in:

**Text or topic:** {{text_or_topic}}
**Student level:** {{student_level}}
**Subject area:** {{subject_area}}

The following optional context may or may not be provided. Use whatever is available; ignore any fields marked "not provided."

**Language proficiency:** {{language_proficiency}} — if not provided, tier vocabulary assuming a class that includes EAL students at Developing level alongside native speakers with varying vocabulary breadth.
**Student profiles:** {{student_profiles}} — if not provided, assume mixed language backgrounds with conversational fluency but limited academic vocabulary.
**Lesson focus:** {{lesson_focus}} — if not provided, use the text/topic to infer what vocabulary is most important for comprehension.
**Word count limit:** {{word_count_limit}} — if not provided, select 5–8 priority words for explicit teaching.

Apply these evidence-based principles:

1. **Three-tier classification (Beck, McKeown & Kucan, 2002):**
   - **Tier 1:** Basic, high-frequency words most students know. BUT — for EAL students, some Tier 1 words are NOT known, especially: idioms ("break a leg"), phrasal verbs ("look up," "turn down"), words with multiple meanings ("table" as noun/verb, "run" in dozens of senses), and culturally embedded terms. Flag these.
   - **Tier 2:** Academic, cross-subject words. These are the PRIORITY. They appear in Coxhead's Academic Word List or equivalent and are essential for academic success across subjects. Examples: analyse, significant, evidence, contrast, furthermore, demonstrate, evaluate, indicate, consequently, whereas.
   - **Tier 3:** Subject-specific technical vocabulary. Usually taught within the subject. Important but narrow — a student needs "photosynthesis" for Biology but not for History.
   - Classify each significant word and explain the classification.

2. **Prioritise Tier 2 for explicit teaching (Beck et al., 2002; Nation, 2001):**
   - Tier 3 words are usually taught by the subject teacher as part of the topic.
   - Tier 1 words are usually known (except for EAL-specific gaps noted above).
   - Tier 2 words fall in the gap — assumed by all subjects, taught by none. These are the highest-impact targets.
   - Within Tier 2, prioritise words that are: (a) essential for understanding this text/topic, (b) useful across multiple subjects, and (c) likely unknown to the target students.

3. **Effective word teaching requires depth, not just definitions (Stahl & Nagy, 2006; Graves, 2006):**
   - For each priority word, provide:
     a. A student-friendly definition (not a dictionary definition)
     b. The word used in context (from the text or topic)
     c. A visual cue or memorable association
     d. Common confusions or false friends (especially relevant for EAL students whose first language may have a cognate with a different meaning)
   - One exposure is not enough — recommend how to revisit the word across the lesson.

4. **Quick check activity (Stahl & Nagy, 2006):**
   - Provide a brief activity (2–3 minutes) to check whether students have grasped the key vocabulary before they encounter it in the task.

Return your output in this exact format:

## Vocabulary Analysis: [Text/Topic]

**For:** [Student level] [Subject area]
**Total significant words identified:** [Count]
**Priority words for explicit teaching:** [Count]

### Tiered Vocabulary

**Tier 1 — Everyday (with EAL notes)**
[Words with any notes about potential EAL challenges — multiple meanings, idioms, false friends]

**Tier 2 — Academic (PRIORITY)**
[Words listed with brief definition and why they matter for this text/topic]

**Tier 3 — Technical**
[Subject-specific words, noting which are likely already taught]

### Teaching Sequence

[Ordered list of priority words to teach, starting with the most essential for comprehension]

### Word Teaching Cards

For each priority word:
**[Word]**
- **Student-friendly definition:** [Plain language definition]
- **In context:** [The word used in a sentence from or related to the text/topic]
- **Visual/memory cue:** [An image, association, or mnemonic]
- **Watch out for:** [Common confusions, false friends, or multiple meanings]

### Quick Check Activity

[A 2–3 minute activity to check vocabulary understanding before students tackle the main task]

**Self-check before returning output:** Verify that (a) words are correctly tiered, (b) Tier 2 words are prioritised for teaching, (c) word teaching cards include definition, context, visual cue, and confusions, (d) the teaching sequence is ordered by importance for this specific text/topic, (e) EAL-specific challenges are flagged for Tier 1 words, and (f) the quick check tests understanding, not just recall of definitions.

Example Output

Scenario: Text or topic: "Year 9 Geography textbook extract on urbanisation in LICs (Low Income Countries) — covers push and pull factors, rural-to-urban migration, informal settlements, and challenges of rapid urbanisation" / Student level: "Year 9" / Subject area: "Geography" / Language proficiency: "Several students at Developing level"

Vocabulary Analysis: Urbanisation in LICs

For: Year 9 Geography Total significant words identified: 28 Priority words for explicit teaching: 6

Tiered Vocabulary

Tier 1 — Everyday (with EAL notes)

Tier 2 — Academic (PRIORITY)

Tier 3 — Technical

Teaching Sequence

Teach in this order (most essential for comprehension first):

1. factor — without this, the entire topic framework (push/pull factors) is inaccessible
2. significant — appears throughout and needed for student writing
3. infrastructure — essential for understanding urbanisation challenges
4. consequently — needed for cause-effect explanations in writing
5. inadequate — key evaluative word for describing urban challenges
6. migration — core concept word bridging Tier 2 and 3

Word Teaching Cards

factor

• Student-friendly definition: A reason or cause that influences something — one of the things that makes something happen.
• In context: "One push factor is the lack of jobs in rural areas, which drives people to move to cities."
• Visual/memory cue: Think of factors as ingredients in a recipe — each factor contributes to the final result. Draw a diagram: multiple arrows (factors) all pointing toward one outcome (urbanisation).
• Watch out for: Students often confuse "factor" with "fact." A fact is something true. A factor is something that CAUSES or INFLUENCES something. Also: "factory" looks similar but means something completely different — though in this topic, factories in cities can be a pull factor!

significant

• Student-friendly definition: Important enough to be worth noticing or mentioning. Large enough to matter.
• In context: "There has been a significant increase in the population of Lagos over the last 30 years."
• Visual/memory cue: Think of a traffic sign — a sign-ificant change is one big enough to need a warning sign. It's not small or trivial.
• Watch out for: In everyday English, "significant" sometimes means "meaningful" (a significant look). In academic English, it almost always means "large and important." Spanish cognate: "significativo" — similar meaning, helpful connection.

infrastructure

• Student-friendly definition: The basic systems and structures a city needs to work — roads, water pipes, electricity, sewers, hospitals, schools.
• In context: "Rapid urbanisation often outpaces infrastructure development, leaving new residents without clean water or reliable electricity."
• Visual/memory cue: "Infra" means "below/underneath." Infrastructure is the stuff UNDERNEATH a working city — the foundations. Show an image of a city cut in half showing pipes, cables, and roads underneath the buildings.
• Watch out for: This is a long word that looks intimidating but has a clear structure: infra (below) + structure (building). Break it apart. Students may have encountered it in news contexts (political discussions about "infrastructure spending").

consequently

• Student-friendly definition: As a result. Because of this, the next thing happened.
• In context: "Rural areas lacked employment opportunities. Consequently, thousands of people migrated to urban centres."
• Visual/memory cue: Consequence → consequently. If you know "consequence" (what happens next), "consequently" is just the adverb form: "as a consequence of this..."
• Watch out for: Students often know "because" but not "consequently." The difference: "because" looks BACKWARD (this happened because...), "consequently" looks FORWARD (this happened, consequently...). Both express cause-effect but in opposite directions.

inadequate

• Student-friendly definition: Not good enough. Not sufficient for what's needed.
• In context: "The inadequate sanitation in informal settlements leads to the spread of waterborne diseases."
• Visual/memory cue: in- (not) + adequate (enough). If something is adequate, it's "good enough." If it's INadequate, it's NOT good enough. Like "incomplete" = not complete.
• Watch out for: The prefix "in-" meaning "not" is a powerful word-learning strategy. Connect to other "in-" words: insufficient, inappropriate, inaccessible. This pattern unlocks many academic words.

migration

• Student-friendly definition: The movement of people from one place to another to live or work — usually a large-scale or permanent move, not a holiday.
• In context: "Rural-to-urban migration has transformed cities in LICs, with millions moving from the countryside to urban areas."
• Visual/memory cue: Think of bird migration — birds move from one place to another at certain times. Human migration is similar: people move because conditions push them away or pull them somewhere better.
• Watch out for: "Migration" (the movement), "migrant" (the person), "migrate" (the verb), "immigration" (coming IN to a country), "emigration" (going OUT of a country). These are all related but distinct. For this topic, we're focused on internal migration (within a country).

Quick Check Activity

"Use it or lose it" — 3 minutes

Display six sentences on the board, each with a gap. Students choose the correct vocabulary word from a word bank displayed alongside.

1. "The lack of jobs in rural areas is a push ___ that drives migration." [factor]
2. "Lagos has experienced a ___ increase in population since 1970." [significant]
3. "The city's ___ cannot keep up with the rapid growth — there aren't enough roads, pipes, or power lines." [infrastructure]
4. "Young people left their villages. ___, the rural population declined." [consequently]
5. "Housing in informal settlements is often ___ — overcrowded and lacking basic facilities." [inadequate]
6. "Rural-to-urban ___ is one of the biggest demographic changes in LICs." [migration]

Check: Students hold up mini-whiteboards with answers. If 80%+ are correct, proceed. If a word is commonly wrong, re-teach that specific word with another example before moving on.

Known Limitations

1. Vocabulary tiering is not absolute — context matters. A word that is Tier 2 for Year 9 students may be Tier 1 for Year 12 students. A word that is Tier 2 in one school may be Tier 3 in another, depending on students' prior vocabulary instruction. The tiers provided are guidelines based on frequency data and typical student knowledge — teachers should adjust based on their knowledge of their specific students.

2. Pre-teaching vocabulary is necessary but not sufficient. Students need multiple exposures (Stahl & Nagy suggest 10–12) in varied contexts before a word is truly acquired. A single pre-teaching session introduces the word; it must be revisited throughout the lesson, the week, and the unit. The teaching cards provide the initial exposure; the teacher must plan for repetition.

3. The tool analyses vocabulary at the word level but academic language is also about phrases and structures. "On the other hand," "as a result of," "in contrast to" are multi-word expressions that function as single vocabulary items. The tool identifies individual words but may not capture all the significant multi-word phrases that students need.