Photosynthesis Process

Lesson Plan of Photosynthesis and Respiration in plants

General Science Grade VI

Students’ Learning Outcomes

·         Compare and contrast the process of photosynthesis and respiration in plants.

Information for Teachers

·         The procedure by which plants create food is called “photosynthesis”. The word “photosynthesis” is prepared up of two words:
·             “photo” = light
·             “synthesis” = placing together
·         Plants take in carbon dioxide from the air and water from the soil; put them together (in the presence of light energy and chlorophyll) to produce sugar (glucose) and oxygen.
·         Chlorophyll is the green color found in plants. Both chlorophyll and light energy need to be present for photosynthesis to take place, but they are not used up in the process.
·         Respiration is quite the opposite of photosynthesis.
·         Photosynthesis is a constructive process in which the organisms absorb energy and gain weight.
·         The raw materials for photosynthesis are glucose, water and oxygen while in respiration it is reverse.
·         Photosynthesis is localized only to the green parts of the plants during day time while respiration occurs both, during night and day in all living cells of an organism.
·         Photosynthesis is a non-continuous process that depends mainly on solar energy while respiration is a continuous process that doesn’t depends on solar energy.

Concept Map

Material / Resources

Colored chalks/marker, board, text

Worm up activity

·         Recall the previous knowledge of photosynthesis and respiration.
·         Note down the points told by the students on one side of the board.
·         Ask different questions and facilitate the students to get to the right responses.
·         Now introduce the today’s topic.


Activity 1

·         Draw a table on the board as shown below.
·         Fill it by the responses of the students and ask them to copy on their notebooks.

Activity 2

·         Draw this table on board or if possible draw on chart paper and display it on the board.
·         Complete it by cross answering with students.
Sum up / Conclusion


·         To assess the understanding of the students ask the following questions:
o   What do plants take from the air and give to the air when they respire?
o   What do plants take from the air and give to the air during photosynthesis?
o   Why it is advised not to sleep under trees at night?
o   Why are the plants called “Lungs of the nature”

Follow up

·         Ask the students to prepare a chart showing the differences between respiration and photosynthesis.
·         Ask them to bring it the next day and paste the prepared chart in the class.
·         Encourage the working of the students in the class.

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