LESSON PLAN

1. Lesson Plan –Teachers Diary
Planning Format
Class/Section__x_Subject__MATHS__ Chapter_14 .STASTISTICS(Meanof groupdata) No.of periods_9_
Date of Commencement_______Expecteddate of completion___________Actual date of Completion____________
Gist Of The lesson Targeted learning outcomes
(TLO)
Teachinglearning
activitiesplanned
for achievingthe
TLO usingsuitable
resourcesand
classroom
management
strategies
ASSESSMENT STRATEGIES
PLANNED
Focusedskills/Competency
In thischapter,we will study
the followingpoints:
1.The meanforgroupeddata
can be foundby:−
i)the directmethod:−
x = ∑ fi xi / ∑fi
1.Findingmeanmeanby
directmethod : The Math
marks of 30 studentsare
given,byputtingformulawe
can findthe meanmarks in
Math,of the students.
Activity1 :Plotting
the graph by using
the graph paperby
usingthe mean
marks of different
classes,toshow the
standardof mathin
classwise manner.
Questions will be asked
to the students –
1.A survey was
conducted by a group of
students as a part of
their environment
awareness
programme,in which
they collected the
following data regarding
the number of plants in
20 houses.Find the
mean number of plants
per house.
No.of plants:0-2,2-4,4-
6,6-8,8-10,10-12,12-14
No.of
houses:1,2,1,5,6,2,3.
ii)the assumedmean
method:x = a + ∑fidi /∑fi
2.By assumedmeanmethod. Activity2: Ploting
the bar graph of the
meanof male and
female of five big
cityof our country.
Students are given the
following questions to
solve
By using assumed
mean method;consider
the following
Annexure1 A

2. iii)the stepdeviation
method:
x = a + (∑fiui /∑fi ) × h
3.By stepdeviationmethod. ACTIVITY-3
Findingthe mean
populationof each
countryof
world,representing
that inray graph.
Studentsare asked to
solve the following
problem byusingstep
deviationmethod.
1) In a retail market
,fruitvendors
were selling
mangoeskeptin
packingbox .
these boxes
containedvarying
numberof
mangoes.The
followingwasthe
distributionof
mangoes
accordingto the
numberof boxes
No.of mangoes;50-
52,53-55,56-58,59-61
No.of
boxes;15,110,135,115
,25
withthe assumptionthatthe
frequenyof aclass iscentered
at its midpoint,calleditsclass
mark.
Ungroupeddatascan be
groupedbytakingthe help
of classinterval
ACTIVTIY-4
Findthe mean
strengthof boysand
girlsof different
classesfindingthe
correct class
interval.
Applyingthe concepts of mean
we can solve our dailylife
problemlike dailyexpenditure
etc.
individual,group
work, Mathematics
labactivities,ICT
Value basedquestions

3. Date: _______________Name and Signature of the Teacher _____________________ Signature of Principal
_________________________
Monitoring cum Reporting Format
Class/Section ________ Subject _______________No. of students in the class_______________
Sl.No. Names of Students
who have not
achieved the TLO
Learning Areas
targeted for
improvement
Remedial Strategies
1 Understanding
congruentfigures
and theirareas.
2
3
Annexure1B
11111B11BBB