Semi Detailed

A Semi-detailed Lesson Plan In Mathematics 7

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II.

Objectives a. Defne Defne mean mean,, media median, n, and and mode mode b. Interpret Interpret data sin sin! ! mean, mean, median median and mode "ales in#sion$ cooperation and patience in fndin! #or the mean, median and mode Sbject Matter  %opic$  %opic$ Mean, Median Median and Mode & Measres Measres o# o# 'entral %endenc() *e#erences$ +rade 7-Mathematics, internet pp. -  ///.prplemath.com0modles0meanmode.htm Materials$ po/er point, cartolina, chal1, ct papers, cps, stic1s

III.

Procedre a. Pra(er b. 'hec1 'hec1in! in! o# attend attendanc ance e c. Passin Passin!0ch !0chec1in ec1in! ! o# assi!nme assi!nments nts d. *evie/ e. 2nloc 2nloc1in 1in! ! o# o# di3c di3clt lties ies #. Motivation Stdents /ill sin! a son!$ 4e( diddle, diddle the medians the middle  5o  5o add, and divide divide #or the mean  %he mode is the the one that (o see see the most So central tendenc( be!ins Presentation Measres o# 'entral %endenc( Mean, Median and Mode Mean

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 also 1no/n as the avera!e add p all the nmbers and then divide b( the nmber o# nmbers.

6ample$

+iven the data ,8,,9,,:,9,;, &<8<<9<<:<9<;<)0= > ?0= > ? Mean - ?  

Median

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 is the @middle@ vale in the list o# nmbers. nmbers have to be listed in nmerical order

6ample$ or odd nmber o# vales$ +iven the data ,8,,9,,:,9,;, ,,,,9,9,:,8,; Median - 9 or even nmber o# vales$ +iven the data ,8,,9,?,:,9,;,,? ,,,9,9,?,?,:,8,; 14 + 15

Median B

2

29 =

2

=14.5

Mode

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is the vale that occrs most o#ten. I# no nmber is repeated, then there is no mode.

6ample$ +iven the data ,8,,9,,:,9,;, ,,,,9,9,:,8,; Mode B 

Application$ . +iven the vales$ 8,=,C,C,C,,,,;, ind the #ollo/in! a. Mean b. Median c. Mode 2. Given the data set: 3, 12, 15, 3, 15, 8, 20, 19, 3, 15, 12, 19, 9

. %he #ollo/in! data represent the nmber o# pop-p advertisements received b( C #amilies drin! the past month. ind the mean, median and mode. 9, 7, ?, C, 9, ;, , , :, ;, 9 9. %he /ee1l( salaries o# si emplo(ees at McDonalds are 9C, ;;C, =C, 8C, 9C, ;CC. or these si salaries, fnd$ &a) the mean &b) the median &c) the mode ?. In Eanar( o# ;CC, (or #amil( moved to a tropical climate. or the (ear that #ollo/ed, (o recorded the nmber o# rain( da(s that occrred each month. 5or data contained 9, 9, C, ;, , , , , 9, C, , 8. +eneraliFation

I".

a. 4o/ do /e !et the meanG b. Hhat is the medianG c. 4o/ to !et the modeG 6valation A stdent has !otten the #ollo/in! !rades on his test$ 87,8?,78,87,=?. Hhat is the mean, median and mode.

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Assi!nment  %he set o# data sho/s a score o# ;? stdents in their periodical test. ind the ollo/in!$ 9 ;

= ;

= ?

;C 7

;C 7

9C = 8

8 ;= 9C

9 ? 7

9? 98 9?

: C ?C

a. Mean b. Median c. Mode