Understanding Corn Structure

Objective

I can write the body of an informative essay explaining the structure of corn and the function of each part.

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Common Core Standards

• CCSS.ELA-LITERACY.W.5.2
  Write informative/explanatory texts to examine a topic and convey ideas and information clearly.
• CCSS.ELA-LITERACY.W.5.2.A
  Introduce a topic clearly, provide a general observation and focus, group related information logically, and include formatting when appropriate.
• CCSS.ELA-LITERACY.W.5.2.B
  Develop the topic with facts, definitions, and details.
• CCSS.ELA-LITERACY.L.5.3.A
  Use knowledge of language and its conventions when writing.
• CCSS.ELA-LITERACY.SL.5.1
  Engage effectively in a range of collaborative discussions with diverse partners on grade 5 topics and texts.

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Materials

• Chart paper or projector
• Visual diagram of corn plant parts with labels (dyslexia-friendly font and clear images)
• Student notebooks
• Sentence starters handout
• Colored pencils or markers

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Time Breakdown (10 minutes)

Time	Activity	Description
1 minute	Introduction	Teacher states the learning goal, reviews "I can" statement and success criteria.
2 minutes	Visual Modeling & Explanation	Show diagram of corn; name parts (root, stalk, leaves, tassel, ear, silk) and describe their functions briefly using dyslexia-friendly text.
4 minutes	Teacher Think-Aloud Writing Model	Teacher models writing 2 body paragraphs on chart paper/projector, explaining how to use facts and clear topic sentences related to corn parts and their functions.
2 minutes	Guided Student Practice	Students brainstorm key facts about one part of the corn (partner or individual), using sentence starters to support writing.
1 minute	Wrap-up & Check Understanding	Ask 2-3 students to share one sentence they would write. Revisit success criteria and clarify any questions.

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Success Criteria

• I use clear topic sentences for each paragraph.
• I include facts and explanations about each part of the corn.
• I use transition words (for example, next, also) to connect ideas.
• I write in complete sentences with correct grammar.

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Differentiation Strategies

For Diverse Learners:

• Provide dyslexia-friendly reading materials and visuals with simple fonts and high-contrast colors.
• Use sentence starters and graphic organizers to structure writing.
• Allow oral explanation before writing for English Language Learners (ELLs) or students with speech difficulties.

Extension for Advanced Learners:

• Challenge these students to write a third paragraph comparing the structure of corn to another plant they know.
• Include more technical vocabulary such as “photosynthesis,” “pollination,” or “vascular system” with definitions.

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Lesson Details

1. Introduction (1 minute)

Say: “Today, we will focus on writing the middle part—the body—of an informative essay. We will explain what each part of the corn plant is and what it does. Our goal is to organize facts clearly.”

Display the “I can” statement:
“I can write clear paragraphs about the parts of the corn plant and explain their functions.”

Review success criteria by reading them aloud.

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2. Visual Modeling & Explanation (2 minutes)

Show a large, colorful diagram of corn labeled with parts: roots, stalk, leaves, tassel, ear, silk.

Briefly describe each:

• Roots: absorb water and nutrients
• Stalk: supports the plant
• Leaves: help make food through photosynthesis
• Tassel: produces pollen
• Ear: holds the kernels (seeds)
• Silk: catches pollen to make kernels

Use simple, clear sentences and present this visually.

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3. Teacher Think-Aloud Writing Model (4 minutes)

Write the first body paragraph aloud and project it (or write on chart paper):

Example paragraph:
“The roots of the corn plant are very important. They absorb water and nutrients from the soil that help the plant grow strong. Without healthy roots, the corn cannot get the food it needs.”

Explain why this sentence works—clear topic sentence, followed by facts and explanation.

Write the second body paragraph aloud:

Example paragraph:
“The leaves are where photosynthesis happens. Photosynthesis is how the plant makes food using sunlight. Because of the leaves, the corn plant gets the energy it needs to produce kernels.”

Discuss transitions and content development.

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4. Guided Student Practice (2 minutes)

Hand out sentence starters like:

• “The ___ of the corn plant helps…”
• “It is important because…”
• “Without ___, the plant would not…”

Ask students to pick one corn part they want to write about and brainstorm 2-3 facts in their notebook or with a partner.

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5. Wrap-up & Check Understanding (1 minute)

Select 2–3 students to share what they wrote aloud.

Ask: “Did everyone include a fact and explanation? Did you use a clear topic sentence?”

Review success criteria briefly and encourage students for next writing steps.

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Notes for Teachers

• Maintaining engagement in a large class (44 students) can be facilitated by partner discussion during brainstorming.
• Use a pointer or digital tool to highlight parts of the diagram for visual focus.
• This lesson scaffolds writing in manageable steps, essential for 5th graders mastering informative essays.

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This lesson plan makes writing the essay’s body accessible, creative, and structured while meeting Common Core standards and considering diverse learning needs.