1st Grade Krebs Cycle Lesson Plan (Science)

Topic: Krebs cycle & its importance in cellular respiration

Objectives & Outcomes

• Students will understand the biochemical reactions involved in the krebs cycle and its significance in cellular respiration.

Materials

• Diagram of the krebs cycle
• Diagram of the electron transport chain

Warm-up

• Ask the students if they know what energy is and where it comes from.
• Ask the students if they know how their body gets energy to grow and stay healthy.

Direct Instruction

• Review the meaning of energy and the sources of energy in the body (food, sunlight, oxygen).
• Introduce the concept of metabolism and explain that it is the process by which the body converts energy from food into a form that can be used by the cells.
• Discuss the steps involved in the Krebs cycle.
• Provide the students with a handout that has a brief overview of the steps of the Krebs cycle.

Guided Practice

• Divide the students into pairs or small groups.
• Provide each group with a set of colored pencils and a copy of the handout with the steps of the Krebs cycle.
• Have the students work together to color in the steps of the Krebs cycle on their own copies of the handout.

Independent Practice

• Provide each student with a copy of the handout that has been completed by their pairs or small groups.
• Have the students use their colored pencils to fill in any missing steps of the Krebs cycle.
• Encourage the students to check their work with a partner before submitting their completed handouts.

Closure

• Review the steps of the Krebs cycle as a class.
• Ask the students to share one thing they learned about the Krebs cycle during the lesson.

Assessment

• Observe the students during the guided practice activity to assess their understanding of the Krebs cycle steps and the significance of each reaction.
• Collect the students' completed worksheets to review their understanding of the importance of each reaction in the cycle.
• Administer a short quiz or a brief written assessment to assess the students' understanding of the Krebs cycle and its importance in cellular respiration.