Reading, Writing, Meaning

Overview

Students will read a short informational text at grade level and practice finding the main idea and key details. They will then write a brief paragraph that explains how those details support the main idea, and they will use new academic vocabulary from the text.

Learning intentions

• Students will be able to determine the main idea of a text and recount key details.
• Students will be able to explain how key details support the main idea.
• Students will be able to ask and answer questions about the text using evidence from the text.
• Students will be able to determine the meaning of general academic and domain-specific words from the text.

Success criteria

• I can tell the main idea of the text in one sentence.
• I can list 2–3 key details from the text that match the main idea.
• I can explain how a key detail supports the main idea using words from the text.
• I can answer a question about the text and point to the sentence where the answer is found.

Curriculum links

• Reading: Informational Text — CCSS.ELA-LITERACY.RI.3.2 (main idea and key details).
• Reading: Informational Text — CCSS.ELA-LITERACY.RI.3.1 (ask/answer questions with text evidence).
• Reading: Informational Text — CCSS.ELA-LITERACY.RI.3.4 (meaning of words and phrases in context).
• Reading: Foundational Skills — CCSS.ELA-LITERACY.RF.3.4a (read grade-level text with purpose and understanding).

Lesson structure (45 minutes)

1. 0–5 min · Hook and purpose. Teacher shows the title and one picture/diagram from the informational text and asks, “What do you think this text will teach us?” Students share predictions in pairs and then the class sets a purpose: “Read to find the main idea and key details.”

2. 5–15 min · Read for understanding (teacher model + choral reading). Teacher reads the first section aloud, then invites students to follow along with choral reading, stopping after each paragraph to ask a quick “What is the text mainly telling us here?” Students track with their finger and answer brief check questions.

3. 15–22 min · Determine main idea and key details (RI.3.2). Teacher draws a simple two-column organizer labeled “Main Idea” and “Key Details,” modeling how to choose details that match the main idea (not extra facts). Students choose 2–3 key details and write a one-sentence main idea.

4. 22–28 min · Text evidence Q&A (RI.3.1). Teacher provides two question stems on the board: “What is the text saying about…?” and “How do you know?” Students practice asking and answering one question per turn, and they underline the sentence that supports the answer.

5. 28–35 min · Word meaning in context (RI.3.4). Teacher selects 3–4 academic or domain-specific words from the passage (examples: “structure,” “describe,” “compare,” “habitat,” “adapt”). Teacher models using context clues and sentence meaning, then asks students to explain what the word means in that specific sentence. Students complete a quick “Word → Meaning in this text → Evidence phrase” box.

6. 35–42 min · Writing: evidence paragraph (writing focus + reading comprehension). Teacher distributes a paragraph frame:

• Sentence 1: Main idea (text evidence-free is okay, but clear).
• Sentence 2: Key detail #1 from the text.
• Sentence 3: Explain how detail supports the main idea (include a phrase from the sentence).
• Sentence 4 (optional): Key detail #2. Students write their own paragraph using their main idea sentence and at least one underlined piece of text evidence. Teacher circulates to support sentence clarity and correct capitalization/punctuation.

7. 42–45 min · Share and quick check. Teacher asks a few students to read their main idea sentence aloud; students respond with “Does your detail match your main idea?” Students make one final edit (add evidence phrase or improve explanation) before turning in.

Resources

• Short grade-level informational text (2–4 paragraphs) with a clear main idea
• Printed copy or digital copy of the text
• Main Idea/Key Details graphic organizer
• Underline highlighter or pencil for text evidence
• Word Meaning in Context boxes (Word / Meaning / Evidence phrase)
• Paragraph frame handout (with lines for 3–4 sentences)
• Chart paper or board for modeling
• Student pencils and erasers

Assessment

• During reading: teacher listens for accurate understanding (students can respond to “What is the text mainly telling us here?”)
• During organizer work: teacher checks whether key details actually support the main idea
• During Q&A: teacher verifies students answer questions using an explicitly referenced sentence
• Quick exit check (last 3 minutes): collect one paragraph or main-idea sentence + one supporting detail sentence

Differentiation

• Provide sentence starters for main idea and explanation (e.g., “The text is mainly about…”, “This supports the main idea because…”).
• Offer a partially completed organizer with one key detail already filled in; students add the remaining details.
• For students needing support, allow a “find it and underline it” approach first, then prompt: “Now tell me what it shows.”
• For extension within the paragraph task, challenge students to use one of the vocabulary words correctly in their explanation sentence and to include a second supporting detail.
• For EAL/SEN: allow oral rehearsal of the explanation sentence before writing, and accept evidence from a single sentence if paragraph length is limited.