Plant Structures & Functions

Grade: 7th

Duration: 40 minutes

Unit: Energy Flow in Ecosystems (Lesson 2 of 6)

Class Size: 20 students

Common Core State Standards Alignment

While Common Core State Standards for Science are primarily covered by the Next Generation Science Standards (NGSS), this lesson aligns with the disciplinary core ideas and performance expectations related to Life Science with appropriate CCSS integration in literacy and speaking/listening:

NGSS MS-LS1-6: Construct a scientific explanation based on evidence for the role of photosynthesis in the cycling of matter and flow of energy into and out of organisms.
CCSS.ELA-LITERACY.RST.6-8.7: Integrate quantitative or technical information expressed in words in a text with a version of that information expressed visually.
CCSS.ELA-LITERACY.SL.7.1: Engage effectively in a range of collaborative discussions.

Learning Objectives (I can statements)

I can identify the main structures of a plant (roots, stems, leaves).
I can describe the functions of plant structures and explain how they support photosynthesis.
I can analyze diagrams and models to understand how energy is captured and transported in plants.
I can discuss findings with my peers clearly and respectfully.

Success Criteria

I can correctly label the parts of a plant on a diagram.
I can explain in my own words the role of leaves, stems, and roots.
I can describe how plant structures work together to support energy capture.
I can participate meaningfully in group discussions and share my thoughts.

Materials Needed

Large poster diagrams of plant structures labeled (roots, stem, leaves, chloroplasts)
Individual handouts with simplified diagrams (dyslexia-friendly font, sans serif, extra spacing)
3D plant model (or physical plant samples, if possible)
Markers and sticky notes
Whiteboard or smartboard
Sentence starters for discussion (to support ELL and behavioral needs)
Vocabulary flashcards

Lesson Breakdown

1. Engage (5 minutes)

Goal: Activate prior knowledge, spark curiosity.

Begin by asking students: “What do you know about how plants get their energy?”
Show a quick visual of sun shining on a leafy plant.
Invite quick pair-share: "Name a part of the plant and what you think it does."
Collect a few examples aloud to connect to prior knowledge.

Differentiation: Use visual prompts and sentence starters for ELL students and those with behavioral challenges to help them participate.

2. Explore (10 minutes)

Goal: Hands-on interaction with plant models and diagrams.

Hand out dyslexia-friendly diagrams and 3D plant model.
In pairs, students label parts of the plant on their diagrams using sticky notes: roots, stems, leaves, chloroplasts.
Prompt critical thinking: “Why do you think each part is important for the plant?”
Teacher circulates to scaffold and ask probing questions for deeper thinking.

Differentiation: Provide word banks and bilingual labels for Spanish-speaking students. Allow gifted students to add details about plant cell structures (e.g., chloroplast function).

3. Explain (10 minutes)

Goal: Teacher-led direct instruction with visual aids.

Using the large poster, explain each plant part’s function with clear examples:
- Roots absorb water and nutrients from the soil.
- Stems transport those nutrients and provide support.
- Leaves capture sunlight and contain chloroplasts where photosynthesis happens.
Relate these functions to energy capture and flow.
Use simple diagrams on the board to show sunlight → leaf → chloroplasts → food energy.

Differentiation: Repeat key points in simple language with visual symbols. Check for understanding with thumbs up/down or exit card questions.

4. Elaborate (10 minutes)

Goal: Collaborative group analysis and discussion.

Split students into 4 groups. Assign each group one plant structure.
Groups use sentence starters to discuss:
- What does this part do?
- How does it help the plant get energy?
Each group creates a mini-poster summarizing their structure & function with drawings and explanations.
Groups present their mini-posters to class (2 min each).

Differentiation: Provide roles within groups (note taker, presenter, artist) to suit students’ needs. Use peer support for IEP students and encourage code switching for Spanish speakers to aid comprehension.

5. Evaluate (5 minutes)

Goal: Formative assessment and reflection.

Exit Ticket: On index cards, students write one thing they learned about plant structures and one question they still have.
Collect cards for review.
Quick whole-class recap: “What part of the plant helps catch sunlight?” “What transports water and nutrients?”

Differentiation: Allow students to draw answers or use sentence frames if writing is a barrier.

Extension Activities (For Advanced Learners)

Research how specific plant adaptations (e.g., cactus stems or aerial roots) help energy capture in extreme environments.
Create a detailed diagram showing cellular level photosynthesis with labeled chloroplast parts.
Develop a short presentation explaining the chemical equation of photosynthesis.

Differentiation Strategies Summary

Learner Profile	Strategies
Gifted Learners	Extension activities, challenging questions
Students with IEPs	Sentence starters, check comprehension early
Behavioral Challenges	Clear expectations, pair-share, movement breaks
Spanish-speaking ELLs	Bilingual vocabulary cards, code switching, visual aids
Students with Dyslexia	Dyslexia-friendly font handouts, oral instructions, visual support

This lesson plan combines hands-on learning, visual supports, and collaborative activities to meet diverse student needs and foster deep understanding of how plant structures relate to energy capture through photosynthesis in a 7th grade science context.

Teaching Instructions