Endangered Species

Overview

In this first lesson of the unit, students learn what an endangered species is and why protecting these animals and plants matters. They also practise choosing precise vocabulary using synonyms and antonyms, and use basic comprehension strategies to understand informational text.

Learning intentions

• Students will understand the meaning of “endangered species” and explain why endangered species are important.
• Students will identify reasons species become endangered (e.g. habitat loss, pollution, introduced predators).
• Students will expand vocabulary by using synonyms and antonyms for key words related to extinction and survival.
• Students will use comprehension strategies (predicting, questioning, monitoring) to understand an informational text.

Success criteria

• I can explain, in my own words, what an endangered species is.
• I can list at least two reasons a species becomes endangered and match them to a fact.
• I can use appropriate synonyms and antonyms to improve my explanation.
• I can ask and answer questions about an informational text to check my understanding.

Curriculum links

• Language: expand vocabulary by exploring synonyms and antonyms and using words encountered in a range of sources.
• Literacy (Comprehension): use comprehension strategies such as predicting, connecting, and questioning to build literal and inferred meaning.
• Literacy (Text features): identify features used in informative texts to meet the purpose of the text.

Lesson structure (45 minutes)

1. 0–5 min · Hook (Think–Pair–Share). Teacher displays 3 images (a known animal, a rare/endangered animal, a habitat scene) and asks: “What might make a species rare?” Students turn-and-talk, then share one idea using sentence starters: “I think… because…”

2. 5–12 min · Build meaning (Mini-lesson + anchor chart). Teacher introduces the terms “species” and “endangered”, and co-creates an anchor chart: Endangered = few left; may disappear. Students contribute ideas and copy a simple definition into their notes.

3. 12–18 min · Interactive vocabulary (Synonym/antonym cards). Teacher models one key pair (e.g. safe/unsafe or grow/decrease) and adds synonyms/antonyms to a class word bank. Students complete a short sorting task in pairs: match words to meaning and record one synonym and one antonym for each target word.

4. 18–27 min · Informational text comprehension (Guided reading). Teacher reads aloud a short, age-appropriate informational passage about an endangered species (prepared print with headings and captions). Students use a 3-step strategy sheet:

• Predict: “What will the text explain?”
• Question: write one question about why/ how.
• Monitor: circle any part that confuses them. Teacher stops at set points to check understanding and prompt reasoning (“What evidence from the text supports that?”).

5. 27–35 min · Investigation stations (Reasons for endangerment). Divide class into 3 stations with rotating groups:

• Station A: Habitat & food (match picture to reason cards)
• Station B: Threats (pollution/introduced predators—sort into “causes”)
• Station C: Vocabulary application (use target words in a sentence frame) Teacher uses the same routine at each station: explain task, model one example, then release. Students record findings on a class “Reasons” organiser.

6. 35–42 min · Whole-class sharing (Oral explanations). Teacher calls on groups to share one reason and one vocabulary word they used. Students deliver a 20–30 second explanation using the structure: “An endangered species is… One reason it is endangered is… The text says…”.

7. 42–45 min · Exit ticket (Quick check & grading). Students answer on paper:

1. Define endangered species in one sentence.
2. Write one reason a species becomes endangered.
3. Provide a synonym or antonym for one target word from the word bank.

Resources

• Printed images: endangered species, habitat, threats (teacher-prepared)
• Anchor chart paper/whiteboard and markers
• Target vocabulary word bank (safe/unsafe, increase/decrease, habitat, pollution, survive/disappear)
• Synonym/antonym card sets (one per pair)
• Short informational text (teacher read-aloud) with simple headings and captions
• Comprehension strategy sheet (Predict–Question–Monitor)
• Station materials: reason cards, picture cards, sentence frames
• Exit ticket slips or one-page worksheet
• Timers (visual) for station rotation

Assessment

• Formative during shared discussion: listen for accurate definitions and clear reasoning.
• During stations: teacher checks if students can match reasons to pictures and use synonyms/antonyms correctly.
• Exit ticket (summative-formative): assess definition accuracy, reason selection, and vocabulary use.

Differentiation

• Support for below-average learners:
• Provide sentence starters and a word bank on their desk during the text and station tasks.
• Use a simpler definition card (“Few left; could disappear”) and allow them to select from “reason” options rather than generating from scratch.
• Offer small-group guided reading with the teacher, pausing for checks and re-reading confusing parts.
• Support for above-average learners:
• Challenge: add a second reason and include one piece of evidence (from the passage) in their oral explanation.
• Extend vocabulary: require both a synonym and an antonym for one target word and use them in a sentence.
• EAL/SEN considerations:
• Use picture-supported instructions at stations.
• Pre-teach key words with gestures (survive, habitat, pollution).
• Allow oral responses to be recorded by a peer or using a matching/choice format if needed.
• Behaviour/engagement supports:
• Clear station roles (Reader, Writer, Reporter) and timers to reduce downtime.
• Frequent “show me” checks (thumbs for understanding, quick circles on strategy sheet).