1. Name ofthe Teacher:NeethuL Devasia Standard : X
Name ofthe School: St. Thomas High School Strength:20
Subject:Biology Date: 21/8/14
Unit:The story of life andorganism Time : 40 min
Topic : Theory of Evolution Period:V
Curricular Statements
Learning Outcomes
Factual Knowledge
Conceptual Knowledge
Procedural Knowledge
MetacognitionLevel
ProcessSkills
Create
Attitude
1) To obtain knowledge aboutevolutionof organism.
2) To understandthe theory regardingthe formation of differentspecies
of an organism.
3) To attain an ideaabout evolutiontheory.
4) To developpositive attitude towards diverse speciesevolvedduring
evolution.
1) The learnerrecognizeschanges occurred duringthe time of evolutionin
an animal.
2) The learnerexplainstheory ofevolution.
3) The learnergive reasonfor stretching of longneck of giraffe.
4) The learnerevaluate differentlawsofLamarck’s theory of evolution.
The learnerdevelopobservationskill by observingchangesof animal like
giraffe during the time of evolution.
The learnercommunicate withothers about importance of evolution.
The learnerbecome able to identifythe speciesformedduringthe time of
evolution.
The learnerdeveloppositive attitude towards variation acquiredby an
organism at the time ofevolution.
2. ContentAnalysis
Terms
Facts
Concept
Major
Minor
Pre-requisites
Teaching-Learning
interaction
Species,evolution,ancestor,limbs,inheritance,Lamarck.
1) Lamarck put forward one ofthe theoriesregardingEvolution.
2) He suggestedthat changes in an individual are acquiredduring its
lifetime,byincreaseduse or disuse of organs.
3) Through continuoususe of neck, giraffe with longneck evolved.
4) Ancestors of snake had limbsand their disuse ledspeciesofsnake
without limbs.
5) Ancestors are the forefathersofpresentspeciesinthe environment.
6) Characters are acquiredby an individual are inheritedbyits offspring.
7) Influence ofenvironmentleadto the changing habits of species.
Lamarck theory of evolution.
Changesappeared duringthe time of evolutionin an organism.
The learneralready knows that specieslivingtoday have an ancestor of
typical physical features.
The learneralready knows that formation of evolutionisnot a sudden
change.
1) A chart showing the changes appearedin the physical structure of
Giraffe.
2) A chart showing 4 laws of Lamarck’s theory.
3. Teaching-Learning Interaction
As part of awakeningprocess,the teacher showsa picture ofgiraffe with short neck and one
picture withlong neck. Thenconduct a discussionwith the students.
Pupils
Response
What do you understandfrom this picture?
Do you know the reason behindthis?
Okay, then watelse do you know about Evolution?
Let us look at the Scientistwho put forward the Theory of Evolution.
Theory of Evolution(B. B. H)
Teacher shows a chart having 4 laws ofLamarck. Before that teacher says about a short detail
about theory. Lamarck suggestedthat changes in an individual are acquiredduring its lifetime,
by increaseduse or disuse of an organ. Teacher then ask one of the student to read out the
chart.
PresentationNo:1
Teacher shows the chart of Four Laws ofLamarck’s theory
Teacher thenexplainsthese laws with suitable exampleslike Giraffe andSnake.
Then she shows another chart havingthe physical changesappeared inthe animal like Giraffe.
PresentationNo:2
All says
two types
of giraffe.
Some
pupils
may say it
is due to
the
change of
evolution.
Pupil
remain
silent.
Pupil
listen
carefully.
Pupil read
out the
chart one
by one.
Livingorganismsand theircomponentparttendtoincrease insize
continuously.
The formationof neworgan inthe body isthe resultof new needand
newmovement.
Constantuse of an organresultsinitsbetterdevelopmentwhiledisuse
cause its reductionanddegeneration.
Charactersacquiredbythe individual duringitslifetimeare inheritedby
itsoffspring.Itmeanschangesare cumulative overaperiodof time.
4. Activity No:1
The teacherdividesthe class intofour groups. Each group were givenactivity sheetsand ask
the m to discuss about changes occurred duringevolution.
Questions
1) Who put forward Theory of Evolution?
2) Characters acquiredby an individual are inheritedthrough ________.
3) What resultconstant use of an organ?
4) What happensdisuse of an organ happensconstantly?
Teacher asked the studentsto read out the answersin group wise.
Pupil
observes
carefully.
Pupil
divide in
group and
discusson
the topic.
One pupil
from each
group
read their
answer.
5. Activity No:2
The teacherask about the concept behindthe Theory of Inheritance of AcquiredCharacters.
Discuss in group and consolidatesas points.After discussionwrite down your points.
Formative Assessment
1) Whichare the four laws of Lamarck’s theory of Evolution?
Followup Activity
Write down the four laws of Lamarck theoryof Evolutionand draw the picture of changes
acquired by giraffe duringevolution?
___________________
Pupil
discussed
in group
and
answered
as
characters
are
acquired
by an
individual
from its
offspring.
LECTURE CUM PICTURISATION