Motive Detectives

Overview

Students investigate a brief, age-appropriate short-story excerpt to determine a character’s motivation. Working in groups, they collect textual clues on a shared investigation board, then write and defend a concise claim-evidence-reasoning paragraph.

Learning intentions

Students will be able to:

• Identify a character’s likely motivation from actions, dialogue, and details in a text.
• Select relevant evidence and explain how it supports an interpretation.
• Write a clear claim-evidence-reasoning paragraph.
• Present an interpretation clearly and respond to brief questions from peers.

Success criteria

• I can state a specific claim about what motivates the character.
• I can record accurate evidence from the story.
• I can explain how each piece of evidence supports my claim.
• I can defend my interpretation clearly during the gallery walk.

Curriculum links

• Writing arguments to support claims using valid reasoning and relevant, sufficient evidence.
• Drawing evidence from literary texts to support analysis and reflection.
• Writing clear, accurate explanatory text that examines a complex idea.
• Producing coherent writing and presenting findings logically for a purpose and audience.

Lesson structure (15 minutes)

1. 0–2 min · Hook and mission. Teacher opens with the mystery hook and mission slide and displays the question, “Why might someone risk losing something important to them?” Introduce the class as literary detectives and explain that groups will solve a character-motivation mystery. Students make a quick prediction with a partner, using one possible motive such as loyalty, fear, ambition, guilt, or independence.

2. 2–4 min · Read for clues. Teacher projects a 180–220-word excerpt about a ninth-grade student who discovers a friend has taken credit for their idea and must decide whether to speak up; read it aloud while students follow an accessible printed version from the character-motivation investigation worksheet. Students underline or highlight one action, one line of dialogue, and one detail that reveal the character’s feelings or motivation. Offer text-to-speech, audio, or a dyslexia-friendly version with a clear sans-serif font and generous spacing.

3. 4–8 min · Investigation board. Teacher forms six groups of five and assigns quick roles: reader, evidence finder, recorder, motive analyst, and reporter. On the board, create three columns—“Clue,” “What It Suggests,” and “Possible Motivation”—and model one example: “The character rereads the message” suggests worry or hesitation. Students add at least two quotations or precise details from the excerpt to their group’s section of the shared board, then agree on the strongest motivation.

4. 8–11 min · Claim-evidence-reasoning writing. Teacher displays the CER model and writing prompt and asks groups to complete the paragraph frame on the character-motivation investigation worksheet: “The character is mainly motivated by ____. For example, the text states/shows ____. This evidence suggests ____ because ____.” Students independently write a three- to five-sentence paragraph, using a quotation or accurately paraphrased detail and explaining its connection to the claim.

5. 11–14 min · Gallery walk defense. Teacher directs groups to leave their board evidence visible and rotate once or twice, depending on space. At each display, students read the claim and evidence, then leave a brief verbal or written response: “I agree because…” or “Another interpretation could be….” Students defend their own group’s interpretation when classmates ask, “Which clue is strongest?” or “Could the character have another motivation?”

6. 14–15 min · Exit check. Teacher returns to the closing question and success criteria slide and asks students to complete the final prompt on the worksheet: “What is the strongest clue, and how does it support the character’s motivation?” Students submit the paragraph and exit response as they leave.

Resources

• the character-motivation investigation deck
• the character-motivation investigation worksheet
• 180–220-word literary excerpt, printed in standard and dyslexia-friendly formats
• Whiteboard or shared digital investigation board
• Markers or digital annotation tools
• Highlighters or colored pencils
• Timer
• Sticky notes or small response cards

Assessment

• During reading and board work, check whether students select relevant textual details rather than unsupported opinions.
• Listen for explanations that connect evidence to motivation, and question groups with “How does that clue prove your idea?”
• Assess the CER paragraph and exit response for a specific claim, accurate evidence, and reasoning that explains the connection.

Differentiation

• Provide the excerpt in a dyslexia-friendly format: clear sans-serif font, 14-point text, increased line spacing, short paragraphs, and bolded speaker names. Permit text-to-speech, audio support, colored overlays, or a partner reader.
• Give developing writers the sentence frame and a small motive word bank; allow students to orally rehearse their claim before writing.
• Assign supportive group roles and provide preselected evidence strips for students who need help locating clues, while still requiring them to explain the evidence.
• Challenge advanced learners to present a competing motivation, rank the two interpretations by strength, and explain why one is better supported by the text.

Extension

• Students revise the paragraph by adding a second piece of evidence and a sentence addressing an alternative interpretation.
• Students rewrite one line of the excerpt to make a different motivation more strongly supported, then explain the change.