Understanding Photosynthesis: How Plants Make Their Own Food, Study notes of Dynamics

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PHOTOSYNTHESIS

Can Plants Make Their Own Food?

Brigitte Passman, 4-H Youth Development Agent Tipton County Jennifer Richards, Curriculum Specialist, Tennessee 4-H Youth Development

3

Can Plants Make Their Own Food?

Photosynthesis

Skill Level Beginner – 4th^ Grade

Learner Outcomes The learner will be able to:

• Describe the process of photosynthesis
• Understand why photosynthesis is important

Educational Standard(s) Supported 4.LS

Success Indicator Learners will be successful if they: § Can put their play-doh pieces in the correct order to demonstrate how plants get materials they need for growth and reproduction § Can correctly identify what goes in and out of the plant with their thumbs up or thumbs down

Time Needed 30-45 minutes

Materials List: Play-Doh, Tooth Pick, Notes handout

Introduction to Content

Author

Brigitte Passman , 4-H Youth Development Agent Tipton County.

Tennessee 4-H Youth Development

Photosynthesis is the process by which plants use carbon dioxide from the air, water and energy from the sun to produce sugar and oxygen. This process is important as it provides us with the fresh produce we love to eat.

Introduction to Methodology

This lesson provides a hands on learning approach to teaching photosynthesis. It can also serve as a method for teachers to assess their student understand of photosynthesis.

Prepared using research based practices in youth development and experiential learning.

Life Skill(s)

4 th^ Grade: Identify at least 4 project areas to consider as a project area for future 4-H work. (Head)

Actively listen to what others are saying; be able to restate or summarize what has been said. (Heart)

Resources used to organize this lesson: § https://ssec.si.edu/stem visions-blog/what- photosynthesis § http://www.biology4ki ds.com/files/plants_ph otosynthesis.html

Share

Lead a discussion with students about their models:

• What was your model different from that of your classmates?
• Describe your thinking as you created each of the pieces of your model.
• What mistakes did you make while putting all the play-doh pieces in the correct places?

Apply

Ask students the question “Does it go into a plant or out of a plant?” for each of the elements below. Plants either consume or produce each of these. Students should give a thumbs up for in (consume) or a thumbs down for out (produce).

• Sunlight In
• Carbon Dioxide In
• Oxygen Out
• Water In

How can you apply what you’ve learned today to other real-life situations?

Process

Ask students to turn to a partner and discuss the following:

• What do you think would happen if plants quit making oxygen?
• Why does it matter that we understand photosynthesis?
• How does photosynthesis impact the foods that you eat?

Allow pairs about three minutes to discuss the questions, then ask volunteers to share their responses with the class.

Generalize

Within their same pairs, pose the following questions for discussion:

• What are some key points you could give a beginner farmer about photosynthesis?
• How does photosynthesis help farmers?
• What if we had an extended solar eclipse that lasted for two days? Would we see any effect on our plants? How else would it affect photosynthesis?

What is photosynthesis?

Synthesis means

---

Leaves contain tiny

structures called

---

Humans breathe in _______________ made by plants.

Plants consume ______________ released by humans.

Chlorophyll

absorbs the

---

---

Name:________________________

Photosynthesis Handout