INNOVATIVE LESSON PLAN-A card play on plant hormones

Name of the teacher : Nandini.s Standard : x

Name of the school : St Thomas school Strength :

Subject : Biology Date :

Unit : The chemistry behind responses Period :

Topic : Plant Hormones Time : 40 minutes

Curricular statements 1) The learner acquires knowledge about plant hormones(phytohormones)

2) To understand the different types of plant hormones and their function

In the plant body

3) To attain conceptual ideas regarding the influence of hormone on plant

growth

4) To develop positive attitude towards maintaining a healthy cultivation

Practices

Learning outcomes

Factual knowledge 1) The learner recalling the term "plant hormones"

Conceptual knowledge 2) The learner understanding about the source of production of plant

Hormones

Procedural knowledge 3) The learner gives reason why plant bend towards the sunlight

4) The learner communicating with others about the role of Plant

hormones in the growth and development

Metacognition level 5) The learner comparing the action of growth promoters and inhibitiors

6) The learner evaluating the features of plant chemical messengers

Attitude 7) The learner develops positive attitude towards the growth of plant

In response to different plant hormones

Content analysis Plant Hormones .Auxin,Cytokinins,Gibberllins ,Ethylene,Abscisic

Terms acid,artificial plant hormones

Facts 1) The hormones produced by the plants are called phytohormones

2) The plant hormones produced by meristematic cells located at different

plant parts

3) Auxins play a major role in the dominanace of terminal buds

4) Auxin helps in the production of female flowers

5) Auxin helps in the elongation of stem cells

6) cytokinins helps in accelerating cellgrowth and cell division

7) Cytokinin prevents the droppings of flowers and leaves.

8) Gibberellin helps in the germination of seeds

9) Ethylene produced in the roots and diffuse to other parts

10) Ethylene prevents cell division

11) Ethylene causes maturation and ripening of leaves and fruit

12) Abscisic acid produced in mature leaves

13) It helps in the dormancy of seeds and buds.

Concept

Major 1) Messengers in plants

Minor 2) Growth promoters

Pre-requisites 1) The learner already knows that hormone plays a key role in controlling the

Growth and development

Teaching –learning 1) cards showing the sources and functions of different phytohormones

Resources 2) Activity sheets

3) Follow up activities

References Science textbook-x (iii)

Biological science –N.P.O.Green ,G.W.Stout,D.J.Taylor(second edition)

TEACHING AND LEARNING INTERACTION PUPIL RESPONSE

Introduction

Teacher starts a discussion on the obvious effects of human hormones.

and ask what the students know about different human hormones etc. pupil says , plant also

Teacher asks students to think about differences between little boys contains hormones

and men and between little girls and women.Reinforce the concepts that

human hormones are very potent, have alot of individual jobs, and are found

in extremely small amounts. Now ask about plant hormones. How a sapling

become a giant tree ?

Today we are going to learn in a different approach about plant pupil says yes

Hormones.

Presentation

Teacher explains that there are two types of hormones in plants pupil listens

They are carefully

Growth promoters Growth inhibitors

I am going to give you some colour cards to each student which conatins

the functions of each plant hormones. students form different

you should form groups based on the hormone(card) you obtained groups based on the

and disscuss about it .After that each group should share hormone they

the information they obtained obtained

Group auxins

Group auxin lists out the sources and functions of hormone group auxins list out

Sources –germinating seeds ,stem tips ,root tips ,leaves , the sources and

leaf buds functions

Functions –role in the dominance of terminal bud

Elongation of stem cells ,growth of lateral roots

Role in phototropism

Eg;

Group cytokinins

Sources –produced at the tip of roots and transport Group cytokinins

through xylem list out the

Functions-accelerating cell growth and cell division sources and functions

Germination of seeds,prevents fruit dropping

Eg :

Elongation of stem cells

prevents fruit dropping

Group gibberellins

Sources –germinating seeds

Embryo,stem and root tips group gibberellins

Functions-germination of seeds,elongation of stem , list out the

Breaking down of stored food sources and

Sprouting of leaves functions

Group ethylene

Sources-produced in roots and diffuse to other parts

Functions –prevents cell division Group ethylene lists

Causes ripening of leaves and fruits out about it features

Helps in leaf formation

ripening of fruits

Group abscisic acid

Sources-produced in mature leaves and diffuse to other Parts

Functions-Prevents cell division and growth Abscisic acid lists

Causes dropping of mature leaves and fruits out their roles

After that the teacher explains about each hormone .Then she gives the

activity sheets and asks them to fill it .

QUESTIONS

1) seed germination

(a) students do the

Leaves sprout

(b) activity

Stem grows

Causes dropping of mature fruits

(c)

Mature leaves

(d)

Falling of leaves

Fill the flow chart with correct hormones

2) suppose five plant hormones are placed on a round circular table

in a clockwise direction .The hormone which plays an important role

in phototropism is placed in between the cytokinins and

the hormone involved in fruit ripening.The hormone which

is a plant growth inhibitor is placed to the left of Ethylene.

The hormone which produced in the germinating seeds is placed

to the right of cytokinins .

Identify the order of placement and marked in the circle given below

Anwers 1)

Gibberellins/ cyokinins , gibberellins, auxins/ gibberellins,

ethylene, abscisic acid

2)

Gibberellins,cytokinins ,auxins , ethylene, abscisic acid

Pupil listens to the

Then the teacher explains the answers and ask review questions : answers and her

explanations

Review questions

1)list out the major plant hormones and their functions?

Follow up activity

1)Prepare a flow chart of plant hormones and their functions?

2)prepare a crossword puzzle for plant hormones .