Complete Sentences

Overview

This is lesson 1 of 14 in Year 4 Sentence Craft. Students learn that a complete sentence expresses a complete idea and uses a capital letter and suitable end punctuation. They orally test sentences before deciding whether they are complete, building on the curriculum emphasis on saying sentences aloud to hear how they sound.

Learning intentions

• WALT identify a complete sentence.
• WALT recognise that a sentence expresses a complete idea.
• WALT use capital letters and end punctuation correctly.
• WALT explain why a group of words is, or is not, a complete sentence.

Success criteria

• I can identify a complete sentence.
• I can check that a sentence expresses a complete idea.
• I can find the capital letter and end punctuation.
• I can explain why a sentence is complete or incomplete.

Curriculum links

• Composition — Sentence structures, grammar, and punctuation: sentence structures can be tested by saying them aloud before writing.
• Composition — Sentence structures, grammar, and punctuation: combining and constructing sentences orally.
• Composition — Sentence structures, grammar, and punctuation: using sentence structures and types to suit purpose and enhance impact.
• Composition — Sentence structures, grammar, and punctuation: combining varied sentence lengths and types to avoid repetitive writing.

Lesson structure (10 minutes)

1. 0–2 min · Hook and oral noticing. Open with the hook and noticing slide and display: “The tūī landed on the fence.” Ask, “Does this sound finished? How do you know?” Students say the sentence to a partner, then identify the complete idea, capital letter and full stop.

2. 2–4 min · Direct teach and model. Use the complete-sentence teaching slides to introduce the three checks: a complete idea, a capital letter at the beginning, and end punctuation. Model comparing “The wind shook the trees.” with “After the storm” and think aloud: “After the storm” makes me expect more information, so it is a fragment, not a complete sentence.

3. 4–7 min · Card sort. Distribute the cut-apart sentence and fragment cards to pairs. Students read each card aloud, place it under Complete sentence or Fragment, and use the three checks to justify their decisions. Circulate and ask, “What idea is missing?” or “Where is the capital letter and punctuation?”

4. 7–9 min · Share and repair. Return to the sorting discussion slides and reveal two examples from the sort. Invite pairs to explain one decision using the frame, “This is a complete sentence because it has…” Students who are ready orally repair two fragments, for example changing “Under the bridge” to “The frog hid under the bridge.”

5. 9–10 min · Check and close. Show the final example on the exit-check slide: “When the bell rang”. Students show thumbs up or down for “complete sentence” and explain their choice to a partner. Select one or two students to share, then restate: “A complete sentence gives a complete idea and begins with a capital letter and ends with punctuation.”

Resources

• the complete-sentence mini-deck
• the cut-apart sentence and fragment cards
• Board or display
• Scissors, if cards are not pre-cut
• Pencils
• Optional picture prompts showing familiar actions and settings

Assessment

• Listen during the oral hook for students who can recognise whether an idea sounds finished.
• During the sort, check whether students use all three criteria rather than relying only on punctuation.
• For the final check, ask students to explain why “When the bell rang” is incomplete; note students who need further support in the next lesson.

Differentiation

• Support students with picture prompts and read each card aloud together before sorting. Provide the oral frame, “It is complete because…” and “It is a fragment because…”.
• Pair students strategically so that confident readers can model fluent reading without completing the thinking for their partner.
• For EAL learners, use gestures and simple explanations for “complete idea”, “beginning” and “ending”; allow discussion in a home language before sharing in English.
• Extend early finishers by repairing two fragments in more than one way and reading both versions aloud to check that each expresses a complete idea.