Grade Level

7th Grade

Duration

40 minutes

Unit

Energy Flow in Ecosystems (Lesson 4 of 6)

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Standards Alignment

Next Generation Science Standards (NGSS)

• MS-LS1-7: Develop a model to describe how food is rearranged through chemical reactions forming new molecules that support growth and energy needs.

Common Core State Standards (CCSS):

• CCSS.ELA-LITERACY.RST.6-8.3: Follow precisely a multistep procedure when carrying out experiments, taking measurements, or performing technical tasks.
• CCSS.ELA-LITERACY.SL.7.1: Engage effectively in a range of collaborative discussions with diverse partners on grade 7 topics and texts, building on others’ ideas and expressing their own clearly.

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Learning Objectives

By the end of this lesson, students will be able to:

• I can explain the process of cellular respiration and its role in converting glucose into usable energy.
• I can compare and contrast cellular respiration with photosynthesis.
• I can work collaboratively to create a visual model demonstrating cellular respiration.

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Success Criteria

• Correctly describe the role of glucose and oxygen in cellular respiration.
• Identify and explain at least two similarities and two differences between photosynthesis and cellular respiration.
• Participate actively in a team to produce an accurate and clear diagram/model.

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Materials Needed

• Whiteboard and markers
• Pre-prepared diagram cards (photosynthesis vs cellular respiration)
• Colored construction paper, markers, glue
• Student handouts with dyslexia-friendly fonts (OpenDyslexic or similar) summarizing key terms
• Projector or smartboard
• Energy molecules cut-out cards (glucose, ATP, oxygen, carbon dioxide)
• Timer

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Lesson Breakdown

1. Opening and Engagement (5 minutes)

Activity: Quick Think-Pair-Share

• Prompt: “What do you already know about how organisms get energy?”
• Students write 1-2 sentences and then share with a partner.
• As a class, briefly discuss. Teacher notes ideas on the board connecting to photosynthesis (from previous lessons).

Purpose: Activate prior knowledge and engage all learners including English Language Learners (ELL).

2. Introduction to Cellular Respiration (10 minutes)

Mini-Lecture + Visual Presentation:

• Explain cellular respiration as the process by which cells break down glucose with oxygen to make energy (ATP), releasing carbon dioxide and water.

• Use an age-appropriate diagram on the board or projector showing the equation:

  Glucose + Oxygen → Carbon Dioxide + Water + Energy (ATP)

• Highlight how it powers cells in animals, plants, and other organisms.

Dyslexia-Friendly Support: Provide students with a handout summarizing this explanation with simple vocabulary and clear fonts.

3. Hands-On Activity: Model Building (15 minutes)

Group Work:

• Form groups of 4-5 students.
• Each group gets cards representing molecules (Glucose, O2, CO2, H2O, ATP) and colored paper to illustrate the process.
• Task: Arrange the cards and create a visual model (diagram or flowchart) showing the inputs and outputs of cellular respiration.
• Bonus challenge: Include one similarity and difference with photosynthesis (using given diagram cards).

Differentiation:

• For students with IEPs or behavioral challenges, assign clear, manageable roles (e.g., reader, writer, illustrator, presenter).
• Gifted learners may add chemical reaction details or explore aerobic vs anaerobic respiration briefly.
• Spanish-speaking students receive bilingual key terms and may work with bilingual classmates.

4. Group Presentations and Discussion (8 minutes)

• Groups briefly present their models.
• Teacher facilitates discussion comparing photosynthesis and cellular respiration emphasizing:
  • Photosynthesis builds glucose and oxygen using light energy.
  • Cellular respiration breaks down glucose to release energy.
• Clarify misconceptions and reinforce main concepts.

5. Exit Ticket & Reflection (2 minutes)

• On an index card or exit slip, students answer:
  “Why is cellular respiration important for living things?”
  “Name one way photosynthesis and cellular respiration are similar.”

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Differentiation Strategies

• Use of visuals, hands-on materials, and bilingual supports for ELLs and Spanish-speaking students.
• Roles and chunked tasks for students with behavioral or attention challenges.
• Dyslexia-friendly written resources with clear fonts and simplified text.
• Extension options for gifted learners encourage deeper chemical understanding and research.

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Extension Activities for Advanced Learners

• Research and present on anaerobic respiration and compare to aerobic cellular respiration.
• Create a detailed energy flow chart showing how ATP powers cellular functions.
• Write a short poem or story that personifies glucose’s journey through cellular respiration.

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Assessment

• Informal assessment through group model accuracy and presentations.
• Exit ticket responses reviewed for understanding of key concepts.
• Observation of participation and comprehension during discussion.

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Notes for Teachers

• Encourage use of drawings and color-coding to support memory and comprehension.
• Scaffold language use for ELLs by modeling scientific vocabulary in context before activities.
• Use timers to keep activities on track and maintain attention.
• Celebrate group successes to build confidence, especially among students with IEPs or behavioral challenges.

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This lesson plan blends hands-on group work with clear, scaffolded instruction, aligned with typical 7th grade standards focusing on energy flow with active participation and inclusive strategies to maximize learning for every student.