Getting to know plants

Resource Info

Basic Information

The lesson plan is for class 6th, Science Chapter - Getting to know Plants.

Lesson plan Details

Duration: 
04 hours 30 mins
Objective: 

 To develop the understanding of the following:

• Different types of plants. (Trees, Herbs and shrubs)

• Different parts of plants and their functions.

Skills to be developed:

• Observation of forms, size, their variation and functions of plant parts.

• Classification of species into categories of similar species.

• Identification of species, their forms, etc.

Steps: 

Day 1

Activity 1 - Exploration of different plants in the school premises. The students will be observing the different sizes, forms, colors, etc. in the plants. (10 minutes)
The students will be asked questions on what they noticed? Where all plants same? What was different? What was similar? Was there something similar in all the plants? (10 mins)
Drawing their attention to their own observations the difference between trees, herbs and shrubs will be discussed with the students in detail. (10 mins)

Activity 2 - Nature exploration. We will go back to the ground and try to spot various plants and categorise them into trees, herbs and shrubs this time based on the discussions in the classroom. During the nature exploration they will also be introduced to weeds by giving examples. (10-15 mins)

Day 2

The discussion will start with the nature exploration and their understanding thus developed we will move further to discuss creepers and climbers as there are a few of them in the school and will then classify them under trees, herbs or shrubs.

Differentiation of plants on the basis of their life span - annuals, biennials and perennials. The students will be asked to recall from their previous knowledge if all the plants live for the same time period. Based on examples given by them and some examples further added the above concepts will be explained. Then the students will be asked to try and differentiate various plants in and around the school into the three categories.

Creepers and climbers - through nature exploration and asking various questions such as:

Q - Why is the plant spread through the ground? Why isn’t it upright?
Q - How is the plant climbing up? Is there something that is helping it to climb up?
Q - Do you know more plants which are creepers and climbers? Have you seen them in your village?

Aquatic and terrestrial plants- the students will be asked where have they seen plants? Have they seen it in water? How do the plants growing under water or in ponds different from that on ground? Can you give examples?

Aquatic and terrestrial plants will thus be discussed in details.

Day 3

Activity 3 - Stem conducts water- Take a glass of water and put a few drops of ink (red/blue) in the water and now put the stem of a herb in the glass. After sometime observe if some change has taken place.

Q - Do you see any change?
Q - How do you think the color rise up the stem?

We will discuss the functions of stem with the help of the questions and observations of the students.

Leaf - observing the leaves of plants around us. We will observe their shapes, sizes, color. Discussing the parts of the leaf based on the observation. I will show them a branch of a plant and show the different parts- petiole, midrib, midrib and veins.

Day 4

Activity 4 - Trace the venation of various leaves on a sheet of paper.

Q - can you see different patterns?
Q - how many types of patterns can you see?

Parallel and reticulate venation will be introduced through it. It will be further followed by nature exploration and identification and categorization of various leaves with parallel and reticulate venation.

Activity 5 - (the setup will be prepared before the class or in the previous class) Transpiration experiment by tying a clear polythene bag around the leaf of an herb out in sunlight and similarly tying another empty poly bag and keeping in the sun.

The students will be asked to observe.

Q - What do you see?
Q - Which bag has droplets? How do you think they got there?

Transpiration will further be discussed in detail with the class.

Day 5

Activity 6 - Photosynthesis. If feasible, activity that shows the plants prepare food in presence of sunlight will be done using iodine. Since this activity needs various materials such as burner, spirit, etc. that can be dangerous to handle, it will be performed by me.

By the activity and the various changes occurring during the process photosynthesis would be discussed in detail.

The discussions would be carried forward by prompting response from the students on the basis of their observations.

Day 6

Activity 7 - Go out and dig some weeds, wash the soil and observe.

Q - What do you observe? Do all the roots appear to be similar?
Q - Is there any difference? What is it?

The tap roots and fibrous roots will be discussed. The students will now be asked to group the weeds that they have gathered into tap roots and fibrous roots.

Q - What similarities do you see in the plants of the same group?
Q - Do you see a pattern within the leaves of the same group? What about the venation?

The parts and functions of the roots will be discussed.
 

Assessment: 

Questions:

  1. Enlist the functions of a leaf.
  2. Enlist the function of stem and roots respectively.
  3. How will you classify plants on the basis of the type of their stem.
  4. Can you name two types of herbs?
  5. Can you name two types of shrubs?
  6. How can you differentiate a herb from a shrub?
  7. What are the main difference between tap root and fibrous roots?
  8. Can you point out the difference between a creeper and a climber?
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