INNOVATIVE LESSON PLAN-A card play on plant hormones

Name of the teacher : Kavitha S Mohan Standard : x

Name of the school : Christ Nagar, Thiruvallom Strength :

Subject : Biology Date :

Unit : The chemistry behind responses Period :

Topic : Plant Hormones Time : 40 minutes

Curricular statements ; Develop factual ,Conceptual,Procedural,Metacoginitive knowledge,Process skills and

Attitude on Plant hormones through lecture method, group discussion and evaluation

By questioning, participating in group work and discussion

Content analysis :-

Terms ; Artificial plant hormones, Plant Hormones -Auxin,Cytokinins,Gibberllins,

Ethylene,Abscisic acid.

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 : -

Minor Concept 1) Plant Hormones are growth promoters.

2) Different types of plant hormones such as Auxin,Cytokinins,Gibberllins,

Ethylene,Abscisic acid are present.

Major Concept 1) Plant hormones are messengers in plants.

2)Plant hormones (also known as phytohormones) .

Learning Outcomes in terms of specification

Enables the pupil to develop

1)Factual knowledge on plant hormones through

a)Recalling the new terms like Plant Hormones -Auxin,Cytokinins,Gibberllins ,Ethylene,Abscisic acid.

b)Explaining about Plant hormones and their functions.

2)Conceptual knowledge on plant hormones through

a)Explaining about plant hormones and their functions.

3)Procedural knowledge on plant hormones through

a)Explaining about plant hormones and their functions.

4)Metacoginitive knowledge on plant hormones through

a)Describing about plant hormones and their functions.

5)Different process skills are

a)Observing about the plant hormones and their functions

b)Communicating through presenting the group work.

6)Scientific attitude towards the plant hormones and their functions

Pre-requisites : Pupil knows ,that hormone plays a key role in controlling the growth and development .

Teaching –learning resources : 1) Hand outs containing the cards showing the sources and functions of different phytohormones

2) Activity cards

3) Follow up activities

References : 1) Text book of standard X

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

CLASS ROOM INTERACTION PROCEDURE PUPIL RESPONSES

Introduction

Teacher makes a rapport with students by asking questions related to contextual

Situation.

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

ask questions

1)what do you know about different human hormones ? 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. Teacher asks questions

1)How a sapling become a giant tree ?

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

Hormones.

Presentation

ACTIVITY-I

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

They are

Growth promoters Growth inhibitors

Teacher divides the students into groups based on the hormone(card)

obtained and ask them to disscuss about it .

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 :

Group gibberellins

Sources –germinating seeds

Elongation of stem cells

prevents fruit dropping

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

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

Helps in leaf formation

ripening of fruits

Causes dropping of mature fruits

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.Then teacher

discuss the answers

Stem grows Gibberellins/ cyokinins,

gibberellins,

(c) auxins/ gibberellins,

ethylene, abscisic acid

Mature leaves

(d)

Falling of leaves

Consolidation

Causes dropping of mature fruits

Plant hormones are essential for the growth and development of plants.

ACTIVITY -II

Teacher gives the activity card and explains about it 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

Then the teacher explains the answers and asks review questions:

Pupil listens to the

answers and the

Explanations.

The answers are :

Gibberellins,cytokinins,

auxins , ethylene,

abscisic acid

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 .